This book sets itself up as being able to teach you all there is to know about upgrading and fixing PCs in 24 hours, it does go on to say 24, one hour lessons. 

The book is generally well written and the accompanying imagers, none in colour I may add, are satisfactory. Several of these images I found amusing as they are of the very same type of Gateway 2000 computer I purchased several years ago.

This book will not turn you into a computer technician so don't come crying to me if you get things wrong, but it will give you the knowledge and skills  to allow you to upgrade and maintain your computer, and as such I highly recommend it.

Constructive criticism, perhaps the next edition could have colour images and a companion CD with listings of computer vendors and parts.