There are several resources that take a "reference book" approach when explaining a technology. While that solves the immediate problem of getting syntax right, it rarely helps in getting proper understanding about how a technology is suppose work within a solution. Such books also fail to provide an understanding of how and when to employ the specific technology while designing and implementing a solution to a specific problem. I found that this book has refreshingly taken a different approach --- looking at a technology from architect or technologist perspective. Sure, it has devoted about a third of the book to UDDI APIs, a section that will be useful for developers, but at the same time, it also provides several insights for senior technical members of a team. For example, the five usage models for business registries in corporate environment covers practically all scenarios in which a business registry-based application can be created. Some of the discussion, such as that on Web services ecosystem or on vendor-customer relationships and role of business registries in those is even useful for IT and business managers.
Overall, I find it a complete book on UDDI -- one that caters to the needs of not only developers, but also senior technology staff in a team as well as IT and business managers for whom registry technologies are relevant.