Mills provides a set of research papers about the travel websites that have sprung up on the Internet. This area has turned into a booming field. People are spending large sums to book via those websites - for planes, hotels, cars, and holidays in general.
So the book provides a good backdrop to those events. The papers' authors analyse various aspects of the websites, and how consumer behaviour might favour some over others. If you are working at one of these websites, you might well want to get a copy of this book. Some wisdom might be gleaned here. Perhaps by your competitors, if not by you.