I bought The Art of Uzbek Cooking by Lynn Visson a few years ago because it was just about the only Central Asian cookbook that you could order on Amazon instead of tracking down some independent publisher. I wasn't all that impressed with it then, though.
But I am now. It's a great little book (although the binding is terrible). There are a lot of recipes packed into a small space and lots of variations on Central Asian basics like plov and manty and shashlyk. This book is a good choice if you want to try your hand at Central Asian cooking.