Comp Sci Books

Pattern Recognition and Machine Learning (Information Science and Statistics) is a pretty good introduction to machine learning techniques. It covers the major techniques such as regressions and support vector machines.

Purely Functional Data Structures is the place to go for a comprehensive treatment of functional data structures such as bootstrap heaps, tries, and real-time queues. Much of the treatment concerns lazy data structures.

With much of modern software infrastructure running on "managed code", knowledge of garbage collection is very useful. Garbage Collection: Algorithms for Automatic Dynamic Memory Management is the go to book in this area.