One of my favorite activities in my spare time is buying and selling on eBay. It has quickly become the world's largest virtual mall of just about everything you can possibly think of. When I received this book I was eager to learn some of the "tricks of the trade" and found a lot of useful material, albeit some of it is geared towards power sellers and not the average user.
The book itself is packed with 125 "hacks" for eBay, which can range from the basics (leaving feedback) to the more complex (setting up your own online check-out). A lot of the hacks give you tweaks and twists on the normal way of doing things, or take a task and show you a different, sometimes a little more dynamic, way of doing it.
Some of the more advanced topics will only be feasible if you are a powerseller. The author covers a lot of third-party tools as well, which can quickly run into the big dollars if you are just selling a few things each week. However, there is a fair amount of material devoted to the mom and pop sellers, like many of us are. One of the shining points of this book is that it does show you how to do a lot of tricks yourself if you are willing to roll up your sleeves and play around with Perl.
However, the book is for more than just sellers. A lot of tips are there for buyers as well. Such things as how to snipe effectively, and how to take advantage of bid increments in the auction to get the item for the lowest price. Even though the author is writing for both parties, the buyer and seller, he does a good job of not taking advantage of one over.
A few of the topics he covers can be a bit controversial, depending on how you look at it. Things such as withholding feedback and sniping can be frowned upon by some -- but it is all perfectly legal in the world of eBay and the author tells you how to take advantage of it.
Overall, a good book for those who want to get more out of eBay than just the casual buyer/seller. If you want to kick-start your eBay selling career, this is one of the books you will want to have to help guide you; Whereas if you want to learn the tricks of the buying game, you couldn't have picked a better reference manual.