Here's a short list of books and resources that I usually recommend to students who are interested in typography and type design. Take a look at the bibliographies of each of these to find the deep cuts.
Inside Paragraphs by Cyrus Highsmith
Shaping Text by Jan Middendorp
Thinking With Type by Ellen Lupton
The Elements of Typographic Style by Robert Bringhurst
The Complete Manual of Typography by James Felici
There are many starting places for learning experiences. These are just a few. What am I reading? I'm still working on getting through Gerry's list for MATD students.