Algorithms are underrated and probably underused – it comes up maybe 1% of the time, but in that 1% of the time, it’s 100% important. These are real algorithms, with real-world application, but the lesson is in the paradigm.
They list Sorting, Binary Searching, Hashing, Dynamic Programming, and Search Algorithm.
Knuth‘s Fundamental Algorithms (volume 1 of his The Art Of Computer Programming – you DO have a copy, don’t you?) describes how to use Linear Lists, Trees, and similar structures. He devotes all of Volume 3 to Searching and Sorting.