Editors’ note: We’re introducing a “Book in Brief” feature here on Boxes and Arrows. We’ll publish an excerpt, up to 500 words, of your book. The catch is that we’ll only publicize one book a month; first come, first serve. Other rules will certainly occur to us over time. Hit us up at idea at boxesandarrows.com. Val Head kicks off August with an excerpt from chapter four of Rosenfeld Media’s newest, Designing Interface Animation: Meaningful Motion for User Experience. Using Animation to Orient