In reply to Greasy Prusiks:
The traditional option is the Steve Ashton guide, the OG, as it were.
My favourite option is the Garry Smith guide, lovely tactile book with feels quite personal.
Then there is the new Rockfax, which is the newest and probably the most comprehensive.
Edit: totally missed the climbing part! Sorry. I'd get Garry Smith and North Wales Rock.
Post edited at 12:11