2000 Solved Problems in Discrete Mathematics (Schaum's Solved Problems)
Introduction to Graph Theory (Dover Books on Mathematics)
Discrete Mathematics DeMYSTiFied
How to Prove It: A Structured Approach
An Introduction to Information Theory: Symbols, Signals and Noise (Dover Books on Mathematics)
Coding Interview Questions
Number Theory (Dover Books on Mathematics)
R for Data Science: Import, Tidy, Transform, Visualize, and Model Data
Introduction to Stochastic Processes (Dover Books on Mathematics)