Martin Fowler is a living legend. Period.
His “Patterns of Enterprise Application Architecture” is still one of very few books every solution architect wannabe should get familiar with. His famous article about Dependency Injection and Inversion of Control (http://martinfowler.com/articles/injection.html) was one of the milestones in modern IT evolution. And at last (but not least) he is a member of Agile Alliance and a co-creator of Manifesto of Agile Software Development (http://agilemanifesto.org) - no additional comment should be needed.
That’s why I watch carefully what’s being published under “Martin Fowler Signature Series” brand (by Addison-Wesley Professional). Those books are not written by Fowler himself, but his personal approval pretty much guarantees the quality of content. Once again this theory has been proven, this time by Robert Daigneau’s "Service Design Patterns: Fundamental Design Solutions for SOAP/WSDL and RESTful Web Services".