The work of Mr. Graham is one of the most complete works that I have read to date.
Graham begins the work with an excellent review of the beginnings of slot cars. The progression into the history of Aurora Plastics Company is a smooth and flawless transition. Graham holds no punches in this book when reviewing mistakes that Aurora made during its years. There are numerous pictures depicting almost any "Vibrator", "ThunderJet", "AFX", and large scale cars (1/32, 1/24) that Aurora produced while owned and operated primarily in the U.S.
This book also has a fair price guide in the back of the book. I think some information is outdated as far as value is concerned, but it is still a good baseline.
Overall, this book is a handy tool to identify your Aurora vehicles and to use as a collectors guide. It is well worth the money to purchase and would even make a good gift for that "slot-head" in your family.
I also recommend getting John A. Clark's book mentioned in the reference to this book. Together you couldn't ask for better information on Aurora!