Algorithms

Came here so say this. The booksite has additional materials and, crucially, solutions to many of the exercises

Sedgewick's Algorithms [1] is pretty good. I found it way more approachable than CLRS. There's also a free course on Coursera[2] from him. 1. https://www.amazon.com/Algorithms-4th-Robert-Sedgewick/dp/03... (https://www.amazon.com/Algorithms-4th-Robert-Sedgewick/dp/032157351X) 2. https://www.coursera.org/learn/algorithms-part1#syllabus

For a gentle introduction to algorithms and Big O, "Grokking Algorithms" is easy to read and fun. For more in depth and systematic study, Sedgwick's "Algorithms" is a very clear and beautiful book. For computer architecture, Petzold's "Code" is wonderful.

Algorithms, by Sedgewick. Various editions for different languages. Unbeatable as of 15 years ago :)