Where to go from here
- Introduction to Algorithms: This is the most popular college textbook for algorithms. It is both rigorous—proving that algorithms are correct and have the claimed running times—and comprehensive—covering dozens of algorithms in over 1300 pages.
- Algorithms Unlocked: This is targeted more at readers who want to get a taste of algorithms and how to analyze them. It's less mathematical than Introduction to Algorithms, and it includes a little more in the way of intuition and applications.
- Algorithms, I & II: An introductory course covering "basic iterable data types, sorting, and searching algorithms in Java".
- Algorithms: Design and Analysis Part I & II: An introductory course that covers the "fundamental principles of algorithm design: divide-and-conquer methods, graph algorithms, practical data structures, randomized algorithms, and more" while being language agnostic.