content: I bought this book for the following reasons:* Seemed to cover J2EE including J2EE, including EJB development for WebSphere* Included a chapter on WSAD (Websphere Studio Application Developer)* High customer reviews* Low price (for used book)My biggest mistake was not to realize that the book was based on Websphere version 3.5 and the chapter on WSAD is based on version 3.5 as well, so this book was barely useful for me.It does have a good overview of J2EE, EJBs and Websphere, so I think that's what explains the high ratings: it is a good book if you're looking for introductory material on how to develop J2EE applications on Websphere, as long as you're developing on version 3.5. If you're using version 4.0 I recommend staying away from this book.