Oxford American Writer's Thesaurus
Published by the Oxford University Press
Copyright © 2012 Oxford University Press
Apx. 1003 pages, not counting various lists, explanations and references
Weight: 3.4 pounds
The beast originally listed at $40.00, and was reduced to $27.82 by B&N - probably because it didn't make the NYT Bestseller's List this year. I used a 20% off coupon I got in my email along with my gift card, and I ended up paying $5.42 for it. Not bad.
It includes a section on English grammar as well as a word usage section that is very nice to have. All in all, a good buy. Now I'll have to see how useful it actually is, as my somewhat grandiloquent protagonist tries to interact with the hoi polloi.