I ordered the Slot Car Handbook based on comments I read on the Slot Car Forum. Given that the highly acclaimed Slot Car Bible was selling for over $100 on this site, and was several years old, and this book was more recent, I thought I would give it a go.
The content is well laid out and I have learned some things about car maintenance etc. that I did not know. Info about the track options and designs is about the same level as one could obtain on the internet given sufficient time and patience.
Overall I found this book a good (very good?) reference and will use it more as I delve into the hobby more. If you are looking for a technical book on tracks and layouts this is not the one. However, if you want more info about the cars and slot racing in general, this will do you fine.
Given it is written in 2007 is does address digital racing but not in as much depth as I had hoped. The author has suggested on the Slot Car Forum that he is researching a new book with more attention on digital. If that is your main interest, or if you are new to the hobby, this book will do until the new one is eventually released.