Tracy Osborn: Hello Web Design
This is a super quick introduction to web design for non-designers. Osborn shows the principles of design, which include layout, hierarchy, color, and typography. She keeps each theory short and sweet and without a line of code. I read the entire book in an hour. I am not the target audience, but I have not read a book on web design in a long time. Plus, the book is beautifully typeset in Tisa family.