Free, Open-Access Textbooks

AI Ethics

Why algorithms discriminate — and what we can do about it

304 pages

AI Literacy

Understand AI without writing code — critical thinking for the AI-powered world

40 pages

AI & ML for Business

From prompt to production — AI strategy for MBAs and business leaders

304 pages

AI Engineering

From transformers to deployment — build production AI systems

307 pages

Algorithmic Addiction

How apps are designed to hijack your brain — and how to fight back

303 pages

Applied Psychology

The hidden forces shaping your decisions, habits, and relationships

303 pages

College Football Analytics

The data behind every fourth-down decision and upset pick

213 pages

Creator Economy

Turn content into a business — monetization beyond ad revenue

318 pages

Data & Society

Who owns your data, who profits from it, and who gets hurt

305 pages

Ethical Hacking

Learn to break in so you can lock it down — Kali, Metasploit, Burp Suite

318 pages

Fandom

How fans build culture, communities, and economies from the inside out

332 pages

Handling Confrontation

Stop avoiding hard conversations — frameworks that actually work

306 pages

How Your House Works

Understand every system in your home — and never overpay for repairs

306 pages

Intermediate COBOL

From copybooks to CICS — master enterprise COBOL programming

334 pages

Intro CS Python

Learn to think like a programmer — from zero to confident coder in one textbook

44 pages

Learning COBOL

The 65-year-old language that still runs 95% of ATM transactions

322 pages

Prediction Markets

How crowds predict elections, economics, and world events

316 pages

Media Literacy

Spot deepfakes, dismantle propaganda, and think for yourself

314 pages

NFL Analytics

Win probability, EPA, and the math behind every NFL play

182 pages

Physics of Music

Why certain chords feel good — the science of sound and emotion

316 pages

Political Analytics

The data behind polls, campaigns, and every election forecast

324 pages

Basketball Analytics

Player tracking, shot quality models, and lineup optimization

214 pages

Soccer Analytics

Expected goals, tactical heatmaps, and the data revolution in football

230 pages

Propaganda

Understand the techniques of propaganda — and how to resist them

304 pages

Python for Business

Automate your reports and analyze data — no CS degree needed

298 pages

RegTech

AI, blockchain, and automation are rewriting financial compliance

307 pages

Science of Seduction

Attraction, desire, and connection through psychology and sociology

320 pages

Sports Betting

Kelly criterion, market efficiency, and the math sharps don't share

322 pages

Architecture of Surveillance

From the Panopticon to predictive policing — how watching became an industry

299 pages

Science of Luck

Luck isn't random — the research on engineering your own serendipity

306 pages

Vibe Coding

Describe what you want. AI writes the code. Ship it.

316 pages

Why They Watch

The psychology of viral video — and 1,000 ideas for your next post

308 pages

Working with AI

Get 10x more from ChatGPT, Claude, and Copilot starting today

316 pages