Computers and Intractability: A Guide to the Theory of NP-completeness
Michael R. Garey & David S. Johnson
Theory and Computation of Electromagnetic Fields
Jian-Ming Jin
Linear Algebra Done Right, 4th edition
Sheldon Axler, 吴俊达, 何阳
Calculus
Gilbert Strang
Entropy and Diversity: The Axiomatic Approach
Tom Leinster