I have been looking for such a book as well. As much as I would love to have all of Barbara Walker's Treasuries (link goes to Vol. 1), $30 a pop for each volume (and there are several) is just too steep. I finally went ahead and bought The Ultimate Sourcebook of Knitting and Crochet Stitches. It came in the mail this morning.
The book is about half knit and half crochet -- maybe the second half will inspire me to pick up a hook for something other than correcting mistakes. The stitch patterns are apparently compiled from The Harmony Guides, another multi-volume offering. They don't include every stitch pattern from the Guides, but there is a decent selection. I like that the photos are in color, but I wish the individual patterns included comments as the Walker books do. Oh, and in case this is important to you... the book doesn't include charts, only written instructions. But the same is the case with the early Walker volumes as well.
Other knitting stitch books include the Vogue Stitchionaries (another series), Mon Tricot (these will be vintage), and some that aren't coming to mind at the moment. There are specialized ones too -- for cables or lace, for example. I think in terms of value for money, the one I chose is pretty good. One day I'd like to get the Walker books, but they are really difficult to find inexpensively as even used copies command close to retail prices.
BTW, many general knitting books include modest stitch libraries as well.