Mathematics

• Inside Interesting Integrals by Paul J. Nahin
• Guesstimation 2.0 by Lawrence Weinstein
• Linear Algebra Done Right Sheldon Axler
• Nonlinear Dynamics and Chaos by Steven Strogatz

Programming

• Clean Code by Robert C. Martin
• The C++ Programming Language by Bjarne Stroustrup

Non-fiction

• The Bomber Mafia by Malcom Gladwell
• Born to Run by Christopher McDougall
• The Ice Diaries by Captain William R Anderson
• How Ike Led By Susan Eisenhower
• Endurance by Alfred Lansing