Java Craft
A guided course from first program to real projects
A complete Java course built around executed projects, exact output, traceable reasoning, and practical programming habits.
PDF books
Books for programming, AI, math and search.
Self-study PDFs that build step by step, with worked examples, practice questions and answers. Buy a book once through Stripe and download the PDF straight away.
PDF downloadOne-time purchaseNo account or subscription
Programming and AI
Python Craft
A guided course from first program to real projects
A complete Python course built around runnable examples, exact output, construction habits, quizzes, and answer keys.
AI Systems Craft
From NumPy and machine learning to neural networks, transformers and LLM apps, project by project
A project-based path from data foundations to modern AI engineering: 209 practice projects with code, exact output, quizzes and answer keys.
The Code Projects Companion
Source-backed projects, logic exercises and combined languages
A large source-backed programming resource edition with project cards, logic exercises, code/output layouts, and cited source paths.
Math and logic
The Math & Logic Foundation
Numbers, algebra and logical thinking, built step by step
A friendly foundation for arithmetic, algebra, functions, truth tables, Boolean logic, trigonometry, geometry, calculus and number bases.
Math & Logic for Coders
The arithmetic, logic, algebra and discrete math behind everyday programming
The complete math and logic foundation with Python in every chapter, ending in a hands-on Python part.
Search and marketing
The Answer Engine Playbook
How search really works now, and how to be found and cited in AI answers
62 chapters that take a marketer from the mechanics of AI search to a working practice, with 62 diagrams and 172 worked self-check answers.
Search Craft
Technical SEO for digital marketers, from crawling and sitemaps to structured data and AI search
Technical SEO taught through 500 runnable Python audit projects, finishing with an end-to-end technical audit you can run on any site.
The Technical Marketer
A complete beginner's path to Python, SQL, JavaScript, automation, digital measurement and SEO
Starts from files, tables and a marketing calculation, then builds to working Python, SQL and JavaScript tools for marketing work.
How buying a PDF works.
- Choose a book
Each book has its own page with what it covers, how it teaches and what it assumes you know.
- Pay once with Stripe
Checkout opens on Stripe's secure payment page. There is no account to create and nothing renews.
- Download the PDF
The receipt page gives you a private download link, and the same link is emailed to you. Each link works once.
Questions about the books.
What format are the books in?
Every book is a PDF you can read on a computer, tablet or phone, and print if you like. Once downloaded, it is yours to keep.
How do I receive a book after buying it?
Checkout is handled by Stripe. When payment completes, the receipt page gives you a private download link, and the same link is sent to the email address you used at checkout. Each link works once, so save the PDF when the download finishes.
Do I need an account or a subscription?
No. Each book is a single one-time purchase. There is no account to create and nothing renews.
Which book should I start with?
To learn to code, start with Python Craft or Java Craft; both begin with a first program and assume no experience. AI Systems Craft moves from NumPy and pandas to machine learning, neural networks, transformers and LLM apps. To rebuild arithmetic, algebra and logic from first principles, start with The Math & Logic Foundation, or with Math & Logic for Coders for the same path with Python in every chapter. The Answer Engine Playbook explains AI search and how to be cited in it, with no coding needed. Search Craft teaches technical SEO through Python audit projects. The Technical Marketer takes a marketer from zero to Python, SQL, JavaScript and automation. The Code Projects Companion is a large practice companion to use alongside the programming books.
Are the books part of the app purchase?
No. The PDF books are sold separately from the Mac apps, one book per purchase.