The book covers (pics a bit grainy) are here. Apparently the file names of the pics give the game away, but I haven't checked those yet (ETA - having checked them they give you a good clue, the name of the author, for those who are stumped)
Even an absent-minded type like me recognises more than one of them. In fact I believe there is at least one book written by one of my lj-friends lurking in there.
I think I've read numbers 3, 6, 10, 11, 16, 17 (didn't like it), 18, 21, 22 (didn't like it) and 23
Post answers in comments? Or is that too much like hard work for this time of day?