Silman's Complete Endgame course has sections for each rating group and tests with answers. Good chess book.
Any recommendations for good chess books for players in the 1500-1600 level?

Really I would recommend any collection of annotated games. Something like Alekhine's "My Best Games of Chess" or "My 60 Memorable Games" by Fischer, etc.

In recommending books I think about the books in my collection that I would re-buy if they were all lost.
My System, The Amateurs Mind, and HTRYC (4th edition) including the workbook are all good suggestions.
Add to these: Silman's Complete Endgame course, and Fundamental Chess Openings by Paul van der Sterren. If you can find a copy of Blokh's Art of Combination, get it. Failing that, Polgar's 5334 problems.
There, that should keep you happy for a few years
Hey :). I'm wondering if anyone has any suggestins for chess books for me. I don't want to spend a ton, but I'm willing to buy a few. I'm definately thinking "How to Reassess your Chess" by Silman, as it has recived many positive reviews. I'm generally weak at endgames, and I've heard of quite a few great endgame books, but I'm not sure if they're right for my level. Any advice?