Creating new income streams 
is SO EASY with Book Ninja... 

Book Ninja does everything for you in mINUTES,
building you a passive income for years to come...
It Takes Less Than 5 Minutes to create your book...
You don't have to be a writer OR designer...
And you can sell your books on several marketplaces...
so you can start start getting paid ongoing royalties...
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What if you could publish a bestselling book in 4 minutes - without writing a single word yourself?

Right now, REAL PEOPLE like you and me are quietly earning ongoing passive income by publishing non-fiction and low-content books on Amazon.

AND, they're doing it:

✅  WITHOUT running ads
✅  WITHOUT building funnels
✅  WITHOUT creating content
✅  WITHOUT becoming an "influencer"


And that's because Amazon's amazing KDP program (Kindle Direct Publishing) makes it easy for ANYONE to publish a book AND get traffic and sales from your books!

And right now, there's a fortune being made in something called “MID CONTENT BOOKS”...

These are hot-selling paperback books like Crossword Puzzle Books, Word Search Books and Coloring Books.

Do you want THE HARD WAY, or THE EASY WAY?
Book Ninja is CRAZY EASY!

Dave Espino here - I’ve made some great passive income with mid-content books, but before Book Ninja, we've had to do it THE HARD WAY…

👉  You had to do lots of research into what the hot selling book niches were…

👉  You had to create each individual coloring page, one-by-one by using AI image generators (that were not always perfect)

👉  And then you had to compile those pages into a book… (or pay someone on Fiverr to do it for you) 

👉  And then, you had to create a great book cover (or pay someone on Fiverr to do it for you)

👉  And FINALLY, you'd be able to upload your book to Amazon…

But here’s the thing…

👉  YOU STILL HAD NO IDEA IF THAT BOOK WOULD SELL OR NOT.

Even though I did SOME research before creating my books, it wasn't ENOUGH to tell me 100% that it would sell.

Lucky for me, the huge amount of time I spent researching books paid off and I’ve been able to do quite will with my Amazon KDP business.

This is from my own Amazon KDP stats for January 2026

One day, I was talking to my business partner Shane Nathan. (who happens to be one of the top people at WarriorPlus)

I gave him all my ideas for an amazing software that would DO ALL THESE THINGS FOR ME.

And what Shane developed BLEW MY MIND!

He basically strung together NINE DIFFERENT AI TOOLS  to come up with this amazing tool we call BOOK NINJA…

Watch as our friend Jeremy 
creates TWO BOOKS in TEN MINUTES! 
(and with zero previous experience with this software)

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AND, Book Ninja Creates HIGH-QUALITY NON-FICTION E-BOOKS, TOO!

The Book Ninja software ALSO researches, analyzes and finds the HOTTEST TRENDING NICHES to create mid content AND non-fiction books for...

So that you CAPTURE THOSE EARLY BUYERS and LOCK IN YOUR POSITION AT THE TOP OF AMAZON.

(Before other Amazon sellers discover these hot, trending niche topics)


First, understand that there is REAL MONEY being made on Amazon with niche books like these…

That's because Amazon ALREADY HAS:

👉  Hundreds of millions of buyers.
👉  Massive amounts of built-in search traffic.
👉  Payment processing.
👉  Delivery systems.
👉  Customer support.

AND, You're Books Are Digital Assets That You Can Sell 
In MANY OTHER PLACES, Not Just On Amazon…

Book Ninja Books Can Sell Everywhere

Yes - Amazon is the biggest bookstore on Earth. 

But it’s not the only place your Book Ninja creations can earn you passive income.

In fact, some of our smartest users will upload their books to:

✅ Etsy - where mid-content books like coloring pages and puzzle books sell like hotcakes
✅ Gumroad & Payhip - great for direct sales and growing a loyal following
✅ Shopify - for building your own brand and storefront
✅ Teachers Pay Teachers - a goldmine for selling educational word searches and learning puzzles
✅ Your Own Website - grow an audience and sell bundles, digital downloads, or even offer licensing
✅ Even Fiverr or PLR sites - where you can license or "ghostwrite" books for other creators to resell!

🔁 This means that each of your books can generate multiple streams of passive income - on multiple platforms - 24/7 for you!

From “One Upload” to being EVERYWHERE!

The truth is, Book Ninja doesn’t just create books…

It creates digital income assets that you can duplicate, list, repurpose, and sell across dozens of buyer-rich platforms.

And unlike other businesses, you don’t have to:

❌ Pay for ads
❌ Build a brand
❌ Manage inventory
❌ Or learn a bunch of tech

Just click → create → upload → and collect your earnings.

⚡ More Platforms = More Royalties

Amazon is just the beginning.

When you use Book Ninja to spread your books across Etsy, Gumroad, Shopify, and more - you’re not just building one stream of passive income...

You're building a royalty engine that grows with every book you create.

✅ One book = multiple income streams
✅ Ten books = a passive income portfolio
✅ Fifty books? You’re quietly building digital wealth - one upload at a time!

Yes, I've Been Looking For A Proven Way To Make Passive Royalty Income...

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Introducing:
Book Ninja

Book Ninja is the All-In-One Software 
For Generating Passive Income 
From Amazon and Other Marketplaces...

Book Ninja does it all for you...

It skips you having to learn new things, bypasses the need to spend hour researching trending niches, and ACTUALLY DOES THE WORK FOR YOU.

With just a few clicks:

✅ It finds the hottest trending topics for mid-content & non-fiction books on Amazon
✅ Creates the entire book - from interior to cover
✅ You upload it to Amazon KDP and start earning ongoing royalties!

And the wildest part? 

Because it’s an AI powered software, this entire process takes literally just minutes.

With one click, 
Book Ninja software
scans real-time bestseller data from bestselling books on Amazon...

It analyzes the good and the bad from those bestsellers...

Book Ninja then cross-checks that data 
with Google Trends,
uses AI to analyze trending posts, and
gathers, analyzes and scores each book type FOR YOU...

THEN...
It identifies 
the BEST BOOKS TO CREATE...
AND, does this 
across ALL 
non-fiction niches:
self-help, business, tech, lifestyle, 
health, wealth
and so much more...

You Go From Validated Hot Book Idea 
To Having Your Own Passive Income Asset
In Just MINUTES. 

That's right - you click a few buttons, and upload it to Amazon and YOU ARE DONE.

In just minutes, you've created a high-demand digital asset that will sell on Amazon, sending you royalties as it sells.

No marketing needed. No content creation needed. No audience needed.

Just upload and let Amazon do what Amazon does best - SELLING IT FOR YOU.

This isn’t a hustle OR a grind...

It’s actually one of the funnest ways to make money that I’ve ever found...

Book Ninja can be YOUR passive income machine that is hiding in plain sight.

I Can Create Hot-Selling Books For Amazon IN MINUTES? I'm in.

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Here’s Why Book Ninja Might Be 
the Easiest Way to Make Passive Income Online...
By "Stacking" Passive Income Streams... 

When you get Book Ninja, you’re not just buying an AI-powered software tool.

You’re getting a done-for-you passive income engine that creates and publishes real books on Amazon (the world’s largest buyer platform) and does it in MINUTES.

And all of this:

✅ Without writing
✅ Without designing
✅ Without marketing
✅ Without an audience
✅ Without tech headaches


Here’s why Book Ninja is for you:

👉  Time freedom:  Each book can be created in under 30 minutes… and it can pay you for YEARS.

👉  Financial freedom:  Amazon does the selling, the shipping, and the customer service. You just collect the royalties.

👉  Mental freedom:  No funnels. No ads. No content grind. No begging people to buy.


And the best part?

Every time you use Book Ninja… you’re building another passive income stream.

Each book is its own DIGITAL ASSET that pays you! (potentially for life...)


👉  Why not create 10 books? 

👉  Why not 20 books?
 
👉  How about 50 books?


And then, WHY STOP, when each royalty stream takes just minutes to create??
 
Now you’re stacking royalty checks - and all without ever writing a word yourself - the AI did it all FOR YOU.

This isn’t a “side hustle.”

This is a quiet, automated wealth-building system that spits out passive income while you go out and live your life.

 With this simple BOOK NINJA SOFTWARE, you can create:

✅  Coloring books
✅  Word search puzzle books
✅  Crossword puzzle books
✅  Non-fiction books
✅  Trend-driven books

The Book Ninja software does it all.

Just think, in just a few minutes, you have a NEW DIGITAL ASSET up on Amazon, ready to make you those ongoing royalties... 

YES! I Love The Idea Of Creating Hot-Selling Books IN MINUTES. Sign Me Up.

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Amazon Already Has the Buyers. 
Book Ninja Hands You the Products.
This Isn’t Theory or Hype...
It’s a Real Software That’s Already Publishing Books

Hey, we know you’ve seen bold promises before.

Maybe you’ve even bought courses or tools that ended up not working or collecting digital dust. 

(I know I have)

So let’s break down why Book Ninja works - and why it will keep working to build you a passive income...

First, the platform: Amazon KDP

Amazon has millions of daily buyers

Amazon handles payments, delivery, and customer service

Amazon ranks and promotes your books automatically

In other words, it’s the ultimate done-for-you selling machine - already trusted by thousands of authors and self-publishers.

Second, the software: Book Ninja

This isn’t an idea or theory. It’s a live AI-Powered Software Platform that:

✅ Finds real-time trending topics on Amazon
✅ Generates coloring books, word searches, crosswords AND non-fiction books in minutes
✅ Creates professional, ready-to-publish book interiors and covers
✅ Lets you upload directly to Amazon KDP in minutes

You don’t need to be creative expert, a writer or a marketing expert! 

And that’s the magic.

You’re Not Just Discovering What’s Trending And HOT…

You’re Being Given The Book, The Cover, The Content - Everything!

All you do is upload the doc that Book Ninja creates! 

(And of course, we show you the simple - and correct - steps to do this quickly and profitably!

This isn’t a gimmick. It’s an easy-to-use passive income machine.

And once you use it… you’ll never look at passive income the same way again.

And, now that we've rebranded to BOOK NINJA, 
we've added the MID CONTENT book creator 
so you can ALSO create Coloring Books, Word Search Books and Crossword Puzzle Books!

The Quality Is Top Notch - I'm In...

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Every Day You Wait…
Is a Day You Could've Earned Royalties

In business timing is EVERYTHING….

Right now, mid-content books are exploding on Amazon.

Coloring books. Word search books. Crossword puzzle books.

They’re easy to create… simple to publish… and buyers love them.

And thanks to Book Ninja, you don’t need to guess what’s trending - the software finds the hottest topics in real time.

So the question isn’t “should I do this?”

It’s:

“How many royalty-generating books have I missed out on by not starting sooner?”

The sooner you begin, the sooner your books start working for you.

Because once they’re published?

Amazon sells them for you.

Every day. Around the clock.

This is your moment.

And Book Ninja makes it easier than ever to take it.

How to Publish a Passive Income Amazon Book 
in 3 Simple Steps

Just PICK, CLICK and PUBLISH!

STEP 1: PICK - Choose Your Profit Path

Choose what kind of book you want to create:

✅  Coloring books
✅  Word search puzzle books
✅  Crossword puzzle books
✅  Non-fiction books

Book Ninja researches the market IN REAL TIME and shows you the hottest, trend-driven niches IN THE MOMENT...

So you KNOW you’re creating a book with the highest potential for sales, both now and in the future… (No more guessing!)

🛠 STEP 2: CLICK - Let the Software Do the Work

Once you pick your hot, trending niche, 

Book Ninja:

✅  Builds the book content for you (puzzles, coloring pages, or non-fiction)

✅  Designs a professional book cover for you

✅  Prepares everything for you in the correct Amazon KDP format

No writing. No design. No formatting. 

Book Ninja DOES IT ALL FOR YOU!

🚀 STEP 3: PUBLISH - Upload and Collect Royalties

In just a few clicks, you upload the finished book to your free Amazon KDP account.

Once your book is live:

✅  Amazon shows it to their millions of buyers

✅  Amazon handles payments and delivery

✅  You collect royalties for weeks, months and even years to come...

📚 Each book you create is a digital asset that can earn royalties for years.

And because the software handles the hard parts, you can create a new income stream in literally minutes.

That’s how Book Ninja works. Simple. Powerful. Fast.

Just pick, click, and publish.

Ok, that IS Really Simple... I'm doing this!

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Get Full Access to the Book Ninja System
For a Low, One-Time Price

🎁 Here’s What You Get When You Join Book Ninja Today:

Full-feature access to the entire Book Ninja system
Create 10 books (mid-content and non-fiction books. Includes coloring and puzzle books + non-fiction)

KDP Trend Hunter engine
Finds hot Amazon niches in real-time, so you never have to guess what to create

Book builder
Generates complete books - interiors + covers - AND, professionally formatted for quick upload to Amazon KDP

One-time price, no monthly subscription required to start
Use it as much as you want - within your usage credits. When you're ready for more, upgrade anytime.

Launch your first book today
The average user can go from idea to Amazon-ready in less than 30 minutes

You’re getting access to the real software, with the full feature set, so you can see the power for yourself.

It’s fast. It’s simple. And it works.

Wow, That Is Crazy Value - Sounds Amazing, I'm In!

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You Can Try It Today, RISK FREE…
or Keep Wondering “What If?”

You’ve seen how Book Ninja works.

You’ve seen how easy it is to create real, royalty-generating books - in minutes - without writing, designing, or marketing.

And you’ve seen how people just like you are already using it to create digital assets that can pay them for years.

So now the question is:

What’s really holding you back?

You're not signing up for a course. (you don’t have to learn anything new)

You don't have to spend a lot of time on this. (this is a VERY part time side hustle that can pay “full time income”)

You're not taking on a risky business. (Amazon is already paying out $520 BILLION and you're just grabbing your share of that giant pie)

You’re just saying:

Yes, I’d like to try a simple system that creates passive income assets for me.

And we even give you an entire 30 days to try this software, risk free!

Just open the software, follow the steps, and see how quickly you can build your first book.

Or… do nothing.

Keep scrolling. Keep searching.

And keep wondering why this “passive income” thing hasn’t worked for you yet.

You have a chance to try something different.

Smarter. Simpler. Better.

Click below to start.

The sooner you begin, the sooner Amazon can start working for you.

Yes, Show Me The Software!

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Along With This AMAZING SOFTWARE, 
You ALSO Get THREE POWERFUL COURSES 
That Show You, Step-By-Step 
How To Publish Your Books With Amazon KDP
AND, additional tips and strategies 
for WINNING BIG on Amazon!

Everything you need to know is in these amazing courses...

You'll discover:

* The best types of non-fiction and mid-content books you can create
* The proven strategy to get TONS OF DOWNLOADS and make TONS OF SALES
* The $100,000 Coloring Book case study
* And much more!

Bottom line, get ready to enjoy one of the most exciting opportunities to make an ongoing passive income that exists.

In 2026, Thousands Of Authors Will Tap Into 
The $520,000,000 Of PASSIVE INCOME 
That Amazon Is Paying Out...

Why Not YOU?

You now have two options:

1.  Watch others discover the hot trends and cash in on them OR, 

2.  Use Book Ninja NOW, catching the hot trends NOW, so you can own entire categories and tap into that $520 M yourself!

So ask yourself:

Do you want to wait… watch the trends pass… and wonder “what if”?

Or do you want to be first - while the opportunity is still wide open?

You already know the answer.

You owe it to yourself & your family. Get Book Ninja today...

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Frequently Asked Questions

Q: Do I need to be a writer or have any tech skills to do this?”

A: Not at all. 

In fact, Book Ninja was built specifically for people who don’t want to write, design, or learn anything complicated.

You don’t need to create content. You don’t need to understand formatting or design. You don’t even need to know what book to make.

✅ Book Ninja finds what’s selling on Amazon
✅ It builds the entire book for you
✅ It even creates a beautiful, professional cover

All you do is upload - and start collecting royalties.

Q: What if I don’t have a computer? Can I use my phone or tablet?

A: YES! One of the coolest parts about Book Ninja is that it is a web-based software, so you can do this entire process from your phone, tablet, laptop or desktop.

Whether you're on your couch, waiting in line, or even on your lunch break - you can be building real digital assets that earn passive income from Amazon.

📱 Tap, click, upload. Done.

No clunky software. No installations. 

If you can use your phone, you can use Book Ninja.

Q: How do I know these books will actually sell?

A: Great question - and this is where Book Ninja blows every other tool out of the water.

It doesn’t just create random books and hope they work. 

It scans real-time Amazon bestseller data, Google Trends, and viral social signals to identify the hottest, trending niches that are making money right now.

So instead of guessing, you’re creating books that are already in demand.

That’s why users are reporting sales faster than ever before - because the books they’re publishing are trending heavily and are what buyers are already searching for.

Q: Is this going to be another ‘side hustle’ that takes forever to work?

A: Nope. Book Ninja is not a course you have to take time to learn. 

It’s not a time-consuming “hustle” that eats your weekends.

This is a plug-and-profit system.

Each book you create is a digital asset that can earn royalties for years to come - and it only takes minutes to create.

The more you create, the more streams of royalty income you build.

And because Amazon handles the buyers, payments, delivery, and even customer service - you don’t need to lift a finger after uploading.

This is passive income, the way it should be.

Book Ninja is your point & click system for passive Amazon royalties, get it today...

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Privacy Policy - Contact Us / Support
Disclaimer: WarriorPlus is used to help manage the sale of products on this site. While WarriorPlus helps facilitate the sale, all payments are made directly to the product vendor and NOT WarriorPlus. Thus, all product questions, support inquiries and/or refund requests must be sent to the vendor. WarriorPlus's role should not be construed as an endorsement, approval or review of these products or any claim, statement or opinion used in the marketing of these products.
Income Disclaimer:
This website and the items it distributes contain business strategies, marketing methods and other business advice that, regardless of my/our own results and experience, may not produce the same results (or any results) for you. Maching Gun Method (and its creators) make absolutely no guarantee, expressed or implied, that by following the advice or content available from this web site you will make any money or improve current profits, as there are many factors and variables beyond our control which may impact any given business. Primarily, results will depend on the nature of the product or business model, the conditions of the marketplace, the experience of the individual, and situations and elements that are beyond your control. As with any business endeavour, you assume all risk related to investment based on your own discretion.
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Guarantee Terms:
If this does not work as stated we will return your payment - Refunds are always honored so there is no risk.
*Please Note:
Testimonials and examples used are exceptional results, and don’t apply to the average purchaser and are not intended to represent or guarantee that anyone will achieve the same or similar results. Each individual’s success depends on his or her background, dedication, desire and motivation. 
As with any business endeavour, there there is no guarantee that you will earn any money.
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