Because @kathleenstetson asked me to, and because @elliotschrock wants to learn. I started with old school design foundation readings, not necessarily the most modern stuff!
  1. The Elements of Typographic Style - Robert Bringhurst
  2. Thinking with Type - Ellen Lupton
  3. History of Graphic Design - Philip Meggs
  4. Interaction of Color - Josef Albers
  5. The New Typography - Jan Tschichold
  6. International Picture Language - Otto Neurath
  7. The Visual Display of Quantitative Information - Edward Tufte
  8. Visual Design in Action - Ladislav Sutnar
  9. Grid Systems: A Visual Communication Manual for Graphic Designers, Typographers, and Three Dimensional Designers - Josef Müller-Brockmann
  10. Grid Systems: Principles of Organizing Type - Kimberly Elam