Folklore of Discworld
Pratchett, Terry
Software Architecture Patterns
Mark Richards
The OCaml System: Documentation and User's Manual
Damien Doligez, Alain Frisch, Jacques Garrigue, Didier Rémy & Jérôme Vouillon
Resisting AI
Dan McQuillan
Categories for the Working Mathematician
Saunders Mac Lane
Pro Git
Scott Chacon