Clean Code: A Handbook of Agile Software Craftsmanship
Robert C. Martin
Algorithm Design
Jon Kleinberg & Éva Tardos
Recommender Systems: The Textbook
Charu C. Aggarwal
Elements of Programming Interviews: The Insiders' Guide
Adnan Aziz & Tsung-Hsien Lee & Amit Prakash
Calculus
Gilbert Strang