This is a comprehensive book, and becuase it is the "official" guide to eBay, it does not offer the skinny about the tricks of the trade--like best and worst times to begin and end auctions, deciding of reserves, and automated software to help with selling etc. It is much like Microsoft manuals: it tells everything about ebay that's official, but does not give away the tricks of the trade. A nice addition to your book shelf, but surely not the first eBay book you should buy. Information about the official stuff, however, is undeniably comprehensive.