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A free-as-in-speech as well as -beer textbook of data structures, covering a great range, including some I hadn't heard of before. Here's the full list: ArrayStack, FastArrayStack, ArrayQueue, ArrayDeque, DualArrayDeque, RootishArrayStack, SLList, DLList,
SEList, SkiplistSSet, SkiplistList, ChainedHashTable, LinearHashTable, BinaryTree, BinarySearchTree, Treap, ScapegoatTree, RedBlackTree, BinaryHeap, MeldableHeap, AdjacencyMatrix, AdjacencyLists, BinaryTrie, XFastTrie, and YFastTrie

"Humanities students should be more like computer-science students.

I decided that as I sat in on a colleague's computer-science course during the beginning of this, my last, semester in the classroom. I am moving into administration full time, and I figured that this was my last chance to learn some of the cool new digital-humanities stuff I've been reading about. What eventually drove me out of the class (which I was enjoying tremendously) was the time commitment: The work of coding, I discovered, was an endless round of failure, failure, failure before eventual success. Computer-science students are used to failing. They do it all the time. It's built into the process, and they take it in stride."

This list of classic books is the result of a poll ACM conducted where members named their favorite computer science books.
We hope you'll enjoy the books in this Classic Books series!