If there ever was book that told you every single thing you need to know about computers, UPGRADING AND REPAIRING PCs would be that book. This hardcover book by Scott Mueller is packed with over 1,500 pages of computer know how. Our favorite chapter is chapter 19 about, no surprise, power supplies. Chapter 19 of UPGRADING AND REPAIRING PCs has 88 pages of dense information about power supplies. If you can digest this chapter about power supplies you will be well on your way to becoming a power supply guru! Whether you are buying the book to enrich our knowledge about computers or to hone your power supply smarts, it certainly makes a worthy piece to your library. ISBN 0-7897-3697-7.