Not a book, but a great resource. http://train.usaco.org/usacogate http://train.usaco.org/usacogate There are readings, and problems which increase in difficu

Not a book, but a great resource. http://train.usaco.org/usacogate http://train.usaco.org/usacogate There are readings, and problems which increase in difficulty as you progress. Covers general CS topics such as algorithms and data structures.