Visual Complex Analysis - Needham. A lot of great pictures, exerything is explained (and shown ) geometrically. Complex differentiation/integration, non-Euclidean geometry, vector fields etc. Mathematics and its History - Stillwell. Wonderfully written. From the ancients to the 20th century, covers the mathematics (in a lot of detail) and lives of major mathematicians (potted bios). Concrete Mathematics - Knuth et al…
re: https://news.ycombinator.com/item?id=15991373 https://github.com/papers-we-love/papers-we-love
Ohh! Thank you! :-) So kind of you.