Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fails to be a good reference

Although content wise most is covered, typography, introductions and summaries give a messy impression and frustrates when trying to find the essence. For example the book's index simply sums up where the keywords you're looking for are found (Little's Law: 9, 202, 213), leaving the reader guessing on which page to find what he or she is looking for. Lacks statistical background info and does not cover data transformations for non-normally distributed data.