I'm planing on learning Statistical Mechanics by myself. I would like to hear recomendations on what you think are the best Statistical Mechanics books. My interest right now would be books that are on a undergraduate level, with detailed explanation, examples and problems, but you could also recomend higher level books for future references. Please, include your opinion on why you think is good. If this have been discussed before, or if you know a link with info about this, let me know too by posting the complete link. Thanks in advance.