most books are out of date by the time you read them.
and no book will help you learn the latest. you can learn them by doing them. it needs knowledge of basic theory and a lot of work experience to be a good technician. You need not a PC troubleshooting guide but a good PC technical guidebook like Winn L Rosch's Hardware Bible or Mark Minasi's PC Hardware Book.
And be sure to visit the THG, tomshardware.com, anandtech, xbitlabs, a1-electronics.co.uk, sharkyextreme, socketa, amd.com, intel.com asus.com, viatech.com .........,.........,...........,....... etc. etc. regularly.
girish
<font color=red>No system is fool-proof. Fools are Ingenious!</font color=red>