As a software developer, the problem space for an application is quite different in the Enterprise than it is for a small domain. This being stated (and is in the book), Mr. Fowler quickly points us to effective patterns to be used for developing enterprise applications. Like the Gang of Four book, this book is a catalog and a good description of the patterns to be used in this space. Mr. Fowler has long been a guru in software engineering and this book clearly shows why. The text is very well written, easy to follow, and indicative of someone who knows what they are talking about, not only from a clear thought process, but from experience as well. This should clearly be a book that sits along with the Gang of Four book on your shelf (Design Patterns) for the Enterprise developer or someone interested in enterprise development.