Beyond the obvious books I think are best, (lol!), I really enjoyed reading James Blake's book, Breaking Back. Andre's book was awesome...if you can get past the F-bombs which he doens't hold back in using in the text.
I also liked My Aces...My Faults by Nick and John Barrett's beautiful book, Wimbledon: the Official history of the Championships.
I've always felt most instructional books left something behind. (Hence, one of the reasons I wrote Tennis Mastery and Coaching Mastery...not to mention that I wanted to reference my father's incredible legacy...a man whose teams won 399 consecutive team matches in Southern Califronia over an 11 year period!)
I like a lot of Allan Fox's work and Gropple's "High Tech Tennis."
These are among the 117 books I own on tennis.
Dave Smith: Author, Tennis Mastery/Coaching Mastery;
Senior Editor, TennisOne; Dunlop Master Professional