I haven't seen anything on these books, or stories. They're older, came out in the seventies and feature a Bar - Callahan's Place. If you have read them, you are smiling and nodding right now. I stumbled onto this set of stories at a second hand book store while I was in middle school. I liked it enough, but it was a little over my head but there were plenty of jokes that I could get at the time. I was in middle school.
As I got a little older, I liked them more and more especially as I grew depressed about my college career. Not that they're self help books or anything - far from it. They're simply hysterical stories. If you like sci-fi of varying degrees, then these are classics that don't seem to have the recognition that they deserve.