I love crime/psychological/thriller type novels (for my "leisure" reading )
Jonathan Kellerman's Alex Delaware series has been one of my favorites, also Lee Child's Jack Reacher series. Dean Koontz has filled my library (most are good, a couple of duds among a long list).
I've read now all of the Kellerman, Child, and Koontz novels. Does anyone recommend an author of a similar calibre?