550+
4.7★
#1
6
AMAZON RATINGS
AVERAGE RATING
#1 IN 3 CATEGORIES
BOOKS IN SERIES
WE ASKED 100+ READERS
Sound familiar?
"I never know how to phrase it."
25% OF READERS
CROFTC
Six inputs tell you exactly what to write, so you stop staring at a blank box.
"It gives me a different result every time."
14% OF READERS
REPEATABLE
The same structure gives you the same quality, prompt after prompt.
"It just invents answers I can't trust."
14% OF READERS
CONDITIONS
Tell the model what it may not do, and the guessing drops away.
"It changes faster than I can keep up."
21% OF READERS
EVERGREEN
One framework that outlives whichever model is on top this month.
Based on 100+ answers to "What's your #1 frustration with AI?" from EntreNexus readers.
HOW IT WORKS
Start free. Then stop guessing.
STEP 02
Get the system
Pick the book that fits where you are: beginner to pro, agents, or the full bundle.
STEP 03
Check your prompt
Watch Lesson 1 of my new course, free, and check any prompt in one minute.
THE METHOD, LIVE
Turn any idea into a structured prompt.
It's the framework behind all six books. Now picture it working on every prompt you write.
THE LIBRARY
One system. Six ways in.
Six inputs behind every prompt in the series, so your results stay consistent, page after page.
WHAT READERS SAY
550+ Ratings. 4.7★ average.
★★★★★
✔ VERIFIED
I want to make good use of AI
"I didn't know where to start, but understanding the core, fundamental structure made my fear disappear. With its range of applications and prompt examples to reference, I feel I can create my own."
Kindle Customer
AI Prompt Engineering Bible · Dec 2025
★★★★★
✔ VERIFIED
Where AI finally becomes operational
"This made me realize the real leverage starts with agents, not prompts. The A-CROFTC structure and workflow examples gave me a clearer way to design useful automations."
Mariusz
AI Agents Bible · Feb 2026
★★★★★
✔ VERIFIED
New to AI
"This book shows the proper wording for prompts to get AI to give you exactly what you're looking for, and how to use it to its fullest potential."
James Boston
PE Bible for Creators · Jun 2026
Tomasz Dylik
AUTHOR · CREATOR OF THE CROFTC FRAMEWORK
20+ years in retail e-commerce and international pricing, and since 2019 a growing library of AI guides on Amazon. I take what actually works and turn it into a repeatable system for people who want results, not hype.
· #1 Bestselling AI author
· AI Academy Ambassador
· Creator of the CROFTC framework
· Tech. Reviewer · Apress / Springer
FREE TOOLKIT
Get the 500+ prompt toolkit, free.
✓ 500+ copy-paste prompts, organized by use case
✓ The 1-page CROFTC cheat-sheet
✓ Fresh prompts added every month
Join 1,500+ readers already on the list.
NEW · THE COURSE
Check your prompt in one minute.
Is My Prompt Any Good? is my new video course. It gives you a one-minute check you run before you hit send. Five lessons, one every Monday. Lesson 1 is free.
OUT NOW
LESSON 01
Same Prompt, Different Answer
OCT 26
LESSON 02
Three Questions Before You Send
NOV 2
LESSON 03
The Other Half
NOV 9
LESSON 04
Run It on Your Own Prompt
NOV 16
LESSON 05
Write It Down Once