I found this book to be easy to read and full of advice based on the latest studies. I enjoyed the book because it is the most comprehensive reference on current information about running and pregnancy I have found.
The book is written by a woman who has run with two pregnancies, and is full of stories from other women who have run with their pregnancies. It talks about their experiences, motivations, and suggestions/cautions. The book also provides material about how running and conception interact, diet, strengthening exercises, stretching, and the truth about aerobic exertion during pregnancy.
As a runner, I think the book is an excellent addition to my pregnancy book collection, and recommend it to all similar runners who are thinking about or have become pregnant.