This book is lavishly illustrated and fun to read. The sections are color-coded and there are few pages without at least one full-color illustration. So often, Web app team workers and managers get grey on grey and so often our output reflects that.
There are flow patterns, layout patterns, widget patterns galore. All good, but the chapter that gave me the most food for thought was the last, "Making It Look Good: Visual Style and Aesthetics." A Stanford study indicates that the most important factor in Web site credibility is the appearance of the site. This is probably also true of Web applications, but not in the same way. I have often had to go toe to toe with developers and executive managers who want to jazz things up with a far heavier, "more impressive" graphical treatment. VPs and marketers want something snazzy to show clients -- but they forget that someone who actually has to *use* an application in their workday may not find "snazzy" to be attractive at all.
Reading this chapter gave me more confidence that the choices in typography, color balance, contrast, and whitespace our teams arrived at through much effort have been correct and beneficial ones.