As an addendum to my talk, “Typography is IA”, I’ve compiled a list of resources which I’ve found useful in my learnings and research. I hope you find them useful and enjoyable as much as I did.
Starting points
- The complete manual of typography by Jim Felici
 - Stop stealing sheep and find out how type works by Erik Spiekermann and E.M. Ginger
 - Five simple steps to better typography by Mark Boulton
 - While you’re reading by Gerard Unger (about the reading experience)
 
Useful reads and references
- Responsive typography: the basics by Oliver Reichenstein
 - Typophile forums (many practitioners and experts here)
 
If you really want to go deep and geek out
Note that most of these tend to focus on typography for print. YMMV.
- Elements of typographic style by Robert Bringhurst
 - Modern typography by Robert Kinross (it’s dense, but I really love this book)
 - The stroke: theory of writing by Gerrit Noordzij
 - Detail in typography by Jost Hochuli
 
Or try the reading lists from the experts themselves…
Reading lists
- Summer reading list for MA Typeface Design at Reading University by Gerry Leonidas
 - Recommended reading by Jason Santa Maria
 
Feel free to suggest more, or ask if you have any specific questions. Thanks!