I love this book, it really has some wonderful hats - very easy to knit but with high visual and design impact. The author's journey to knitting is interesting too - she's a photographer who needed cute hats for her models. I can totally see you doing something like this T!
On a side note, I've started working on this koigu scarf - 648 stitches, cast on! Whew. I'm not sure if it will be a good car ride project though. The pattern is from Churchmouse Yarns & Teas on Bainbridge Island in Seattle. I visited last year when I was at the ACRL conference and it is a MUST visit if you're in the neighborhood.