Downloads
The PDF, EPUB, and offline single-file versions are released free by the original author under CC BY 4.0, synced with the web edition. The buttons below jump to each download page (some files need a password, noted on the card).
About these resources
These are the same book in different shapes
PDF, EPUB, and offline HTML are three packaging formats of the same content — only the device differs. PDF is for printing, EPUB for reading apps, HTML for double-clicking offline.
All come from the original author’s CC BY 4.0 release and stay synced with the web edition; pick whichever fits your device.
How to choose
Mostly on phone or e-reader? Pick EPUB. Want to print or annotate on a tablet? Pick PDF. Just want an offline backup that works anywhere? Pick HTML.
The four cards lead to four download pages, each with notes and an extraction password.