Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A lot for the money, but on the other hand...you get what you pay for!

As another reviewer noted, this book is largely identical to the previous version. Less acceptable, to my point of view, is the utter failure to correct mistakes that occurred in the previous edition. Number 17 on page 124, for example, is unsolvable as written and the answer is incorrectly reasoned. I e-mailed them about this last year and they agreed that it was unsolveable as written and assured me it would be corrected in the second edition. Well it isn't! Number 12 on page 491 remains uncorrected (in addition to the answer they note, it could also have length of 85 and width of 1). Several other typos HAVE been corrected, for which I am grateful, but one would expect much greater editing accuracy in this edition, given the complete overlap with the first edition.