If you’re interested in learning to bind books, the best place to start (IMO) would be YouTube tutorials! Here’s who I would recommend:

DAS Bookbinding has a lot of great info and projects, a lot of which are historical bindings. Here’s his playlist for getting started, and here’s his playlist for a rounded & backed cased book.

Sea Lemon is another popular YouTuber, and her bookbindings are a bit more casual. Here’s her playlist on methods & stitches, and here’s her playlist on supplies & tips.

Good luck!