The Non-Designer's Design Book -- Design and Typographic Principles for the Visual Novice by RobinWilliams, Peachpit press, Berkeley, CA, ISBN: 1566091594
Robin gives us four design principles for improving the pages we make with our desk-top publishing systems...
- Proximity
- Alignment
- Repetition
- Contrast
She devotes a chapter to each of these and adds a few more about type, life and learning.