Recommended book

• Savas Parastatidis, Jim Webber and Ian Robinson. REST in Practice: Hypermedia and Systems Architecture. O'Reilly Media, 2010.

Readings

• R. Fielding: Architectural Styles and the Design of Network-based Software Architectures (Chapter 3, Network-based Architectural Styles). PhD Dissertation, University of California, Irvine, 2000.
• R. Fielding: Architectural Styles and the Design of Network-based Software Architectures (Chapter 5, Representational State Transfer (REST)). PhD Dissertation, University of California, Irvine, 2000.
• G. Hohpe: Enterprise Integration Patterns (Chapter 3, Messaging Systems). Addison-Wesley, 2003.
• Steve Jones: Enterprise SOA Adoption Strategies. InfoQ, 2005.
• Petri Selonen: From Requirements to a RESTful Web Service: Engineering Content Oriented Web Services with REST. In REST: From Research to Practice, Springer 2011 (PDF can be downloaded if you're using the University network).