I'm not at the level to really need this book yet, but I checked it out to get some idea of what I'm letting myself in for. There were some good ideas on finishing, including different ways to increase/decrease and what they look like, and the photos usually made it very clear what she was describing, but I'm not sure people who didn't already understand mattress stitch would have understood what she was doing from the angle she used.

Definitely worth looking at again, when I get past my current hump.