I remember Lancaster's "CMOS Cookbook" from the old days. Is this still mostly relevant after all these years?
I would say, probably not so much. While it was a really good book for a long time, I think it's fallen behind the level of integration that is currently available and cheap. A lot of the cookbooks were about building relatively complex circuits out of the small scale gates that were the jelly-beans of the time. The 4000 series gates that are the focus of the book are long obsolete, and of course there was very little about interfacing to microcontrollers. While there may be some info in there about shift registers, you won't find the 74hx595 that is so popular for output expansion. A lot of the more complex projects (I built a keyboard encoder based on circuits in that book!) should now have "use a microcontroller" as the answer.
I don't know of a replacement.