There are soooooooo many books about Elvis. I think there are more books about him than any other famous person. While I haven't read all of them (I'm not filthy rich and some books cost a FORTUNE to obtain *smile*), I've read a lot of them. Some were excellent while others were written by people who seemed to just want to cash in on Elvis after his death.
To me, a good Elvis book has to be interesting, full of at least a few nice photos, and worth the price I pay for it overall. I love books that share tasty tidbits that very few people know.
Here are some books I have read more than once and can highly recommend.