[qsort]

+1 for the book, an excellent reference. As someone who's primarily a developer, it's been extremely useful as a study guide.

Also, there's a new version; s/2/3 :)

[nerdponx]

It's useful as a study guide and reference even for someone who ostensibly learned all this stuff in school. It's a tremendously good book, and it's even more impressive that it's free to read online in a high-quality HTML document.