When one sees oneself in a book one is reading, one either laughs or cries. While reading Knitting Rules! by Stephanie Pearl-McPhee (the Yarn Harlot), I laughted a lot, even when it hurt a little. I am still not quite comfortable with my obsessive-compulsive knitting, and I am in denial about my stash. It is telling that the first scrap of paper I grabbed to use as a bookmark was a yarn ball band. And according to this book, I am an "organic" knitter, although in lieu of sheep, I have an angora lop rabbit.
That said, this book is fun to read if you have some experience knitting. And the project-specific chapters are helpful if you have some experience knitting those types of projects. For example, I have knit several hats, so the chapter on hats provided additional information and insight. But I have never knit a sock, so the sock chapter went right over my head. But don't skip the glossary at the end, as it is the funniest.
The best two pieces of advice this book offers are: There are no knitting police, and It is only knitting. In other words, don't be like me and follow patterns slavishly, and don't be afraid to even start. Yarn is very forgiving. It can be knit and frogged and knit again another day.