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My Data Structures & Algorithms class uses this book - it's fantastic. One nitpick is the "EASYQUESTION" sorting visualizations in the book; they aren't too easy to quickly understand (why use letters instead of numbers demonstrating sorting algorithms or trees?

Best book on Algorithms I know of. Extremely pedagogical and clear explanations!

Another vote here. I prefer this book to the CLRS.

He's got a pair of Coursera courses that run frequently covering most of the books.