The Feynman Lectures on Statistical Mechanics contain a great deal of very useful information, and each page is full of solid work without bothering too much with unnecessary details. The book also covers all the bases very well, hitting plenty of good examples, such as spin waves, and the obligatory superconductivity chapter is a solid introduction.
My only complaint is that the ordering of the book is a little haphazard. I understand that it is difficult to include quantum and classical statistical mechanics in one continuous run, but the book seems to jump around a bit.
All this considered, the book is probably a must-buy for people interested in statistical physics, as it is one of the better general overview books available (I despise the Reif; it needs to be updated and completely rearranged), and, as an added bonus, you get to see the Onsager solution to the 2-D Ising model. Cheers!