Chapter 2 delves into services - answering well the ubiquitous question -
What is a Service?
It then delves into the elements of a service - contract, interface and implementation.
However, the example used - a US diner breakfast service - is not to my taste (get the pun!).
The authors may have been better off with a more mundane example - such as car rental booking.
However, the more implementation oriented examples in this chapter do illustrate & illuminate the concepts discussed. What I like about the chapter, and the book in general, is the fact the authors always answer the Why - i.e. giving us solid business reasons for what they are offering.
Again the link -
SOA made simple