Type Matters by Jim Williams: A visual intro to typography that takes less to read but more to marvel its gorgeous design. This is a perfect example of a graduate thesis project in graphic design.
Typographic Web Design by Laura Franz: Not too many books devoted to web typography. This one has some useful tips on legibility when choosing types for the web. In-depth HTML & CSS tutorials are helpful for beginner web designers.
The Elements of Typographic Style by Robert Bringhurst: Rereadinging this book seems to take slower and slower each time just to digest the information.