4 Books·7 Languages

The Actually Learn Series

The tools to actually retain what you learn.

AI can summarize any book, generate any flashcard, and answer any question. But it can't make you learn. These four books cover the skills that still require a human brain: note-taking, active reading, spaced repetition, and deep focus.

Zettelkasten

Zettelkasten

Reading That Sticks

Reading That Sticks

Spaced Repetition

Spaced Repetition

Deep Focus
Coming Soon

Deep Focus

Kindle eBook · Available on Amazon

Zettelkasten

Book 1

Zettelkasten

How to Actually Learn in the Age of AI

A practical guide to the Zettelkasten note-taking method adapted for the modern era. Learn why AI summaries feel like learning but leave nothing behind, and how to build a system for lasting understanding.

Available in 7 languages

Reading That Sticks

Book 2

Reading That Sticks

Why AI Can Summarize Any Book but Can’t Make You Smarter

A five-step system — choose, engage, extract, connect, express — that turns reading from passive consumption into active thinking.

Available in English and German

Spaced Repetition

Book 3

Spaced Repetition

Why AI Can Generate Any Flashcard but Can’t Make You Remember

Fifteen minutes a day. One hundred and forty years of science. A practical handbook for building a daily flashcard practice that survives a busy life.

Available in English and German

Deep Focus
Coming Soon

Book 4

Deep Focus

Why AI Can Answer Any Question but Can’t Make You Concentrate

The prerequisite the other books assumed you had. Every technique in the Actually Learn series requires sustained attention — the one resource getting scarcer, not cheaper. This book shows you how to build a practice that protects your focus in a world designed to steal it.

Coming Soon

Coming Soon
Standalone Companion

A standalone companion — not part of the series, but a natural pair with Spaced Repetition.

Memory Palace

Memory Palace

How to Remember Anything Using the Oldest Learning Technique in History

The method of loci — 2,500 years old, used by ancient orators and modern memory champions. A practical guide to remembering names, books, presentations, and everyday information.

Available in English and German

Gabriel Anhaia

About the author

Gabriel Anhaia

Senior Software Engineer based in Berlin. 10+ years of experience building scalable backend systems for fintechs and high-growth companies.

Also the author of the AI Engineer's Library, Hexagonal Architecture in Go, The Complete Guide to Go Programming, and creator of Hermes IDE.

Start learning for real

AI can answer anything.
Can you remember what it said?

Four books covering the skills that still require a human brain. Available now on Amazon.

Kindle eBook · Available now