Visions of Infinity: The Great Mathematical Problems
Ian Nicholas Stewart
Decision Diagrams for Optimization
David Bergman & Andre A. Cire & Willem-Jan van Hoeve & John Hooker
Design Patterns Cheatsheet
CheatSheet
Kant and the Foundations of Analytic Philosophy
Robert Hanna
Advanced Grammar in Use with Answers
Martin Hewings
To Kill a Mockingbird
Harper Lee