On: Mathematics for the Adventurous Self-Learner

[graycat]

Simmons? WOW! He's a serious mathematician, e.g., as in his

George F. Simmons, Introduction to Topology and Modern Analysis.

I studied it one summer in an NSF program at Vanderbilt. Then I concluded that he is one heck of a good math writer.

[dougabug → graycat]

He has elementary textbooks on calculus and differential equations, as well, so you get an entire development from precalculus all the way to topology and analysis from the coherent viewpoint of a legit (but sympathetic) mathematician.