Having had a scan through it, looks good, well writen, and bloody handy. Nice one. Money well spent.

I'll review it in depth at a later date, I can cheerfully report at this stage that it is going to save one hell of a lot of frustration trying to get this site to load when I want to know something.

I recommend this book to anyone who wants to fill in the many yawning gaps in the magento knowledge base, without going bonkers trying to use this (the Magento) website.