There is SICP. For distributed systems I'd read Lynch's book on Distributed Algorithms. For stats Michael Freedman's book, Statistics, is a good simple introd

There is SICP. For distributed systems I'd read Lynch's book on Distributed Algorithms. For stats Michael Freedman's book, Statistics, is a good simple introduction. Someone mentioned Calculus and Statistics (http://www.amazon.com/Calculus-Statistics-Dover-Books-Mathematics/dp/0486449939/ref=sr_1_1?s=books&ie=UTF8&qid=1324589380&sr=1-1 http://www.amazon.com/Calculus-Statistics-Dover-Books-Mathem...) here on HN a couple of weeks ago. I had looked it when it came out and re-reviewed it with that thread -- I really like it a fair bit more than I remember and a better text for those looking for a more rigorous treatment than Freedman -- although probably still too simple if you're reading Foundations of Statistical NLP. There's also Scott's book on Programming Languages, which is worth reading.