This is a pretty good book, teaches some good stuff. Now I may disagree with some, but most of her insight is really good. I came across this quote from her that caught my attention, and decided to share with you here.
“Rarely is the principle of proximity the only answer to a page. The other three principles are intrinsic to the design process and you will usually find yourself using all four. But take them one at a time-start with proximity.”
(the four are Proximity, Alignment, Repetition and Contrast)