This book is just ridiculous. The "author" came to the eBay Community Boards and basically asked for advice to add to his book. It didn't matter what advice was given or the status/knowledge level of the person who gave it, as long as it filled up more space in his book. Case in point, there are many (too many) blurbs by Big_pink_starfish, a seller who specializes in selling trading cards that are not in high demand. The seller loses money on every single auction she has b/c she has a store, has "extras" on her auctions that cost money, yet sells each item for a quarter AND takes payment by Paypal which is a .30 +2.9 charge for every payment made. She is in the hole every time a sale is made yet this is a "Master". Other blurbs come from those who admit they have never sold a thing on eBay before. These tips are supposed to be from the most successful sellers and buyers? Obviously no research was done on the background of those quoted.
Take my advice, don't buy the book, go the eBay forums yourself and anyone with half a brain can tell the knowledgeable sellers from those who just take up space.