Mathematics With Applications
Susanna S. Epp
Category Theory
Steve Awodey
Type Theory and Formal Proof
Rob Nederpelt & Herman Geuvers
Elemental
Tim James
The Feynman Lectures on Physics, Vol. II
Richard P. Feynman & Robert B. Leighton & Matthew Sands
The Feynman Lectures on Physics (1)
The Feynman Lectures on Physics, Vol. I
The Feynman Lectures on Physics, Vol. III