Jan Harold Brunvand's "The Vanishing Hitchhiker" is the first of several books he has published which take a scholarly look at Urban Legends. Where did these legends start, how have they evolved to fit a new time or situation. Urban Legends are interesting stories, as you will find people who are swear that they happened (usually not to them, but to a friend or a relation or a relation of a friend, etc.), and you can even find cases where they are reported as happening. They can be based on something which really happened, or something which never have happened, but regardless, their spread and retelling takes on a life and purpose of its own.
The first chapter of the book deals with all the foundational information. What are "Urban Legends"? How should they be interpreted? Brunvand uses "The Boyfriend's Death" legend to help explain the phenomena and how they are studied. By far this is the most important chapter of the book, as this is then the material the reader will use on the majority of the rest of the book.
Chapters 2 through 7 are all about the legends, broken into groupings such as Automobile, Teenage Horrors, Contaminations, the dead, kind of a catchall he titles "Dalliance, Nudity, and Nightmares, and then finally two favorite media legends. Chapter 8 then looks at urban legends in the making, where he looks at legends which never take off into the population as a whole (or haven't yet), or have gone into a period of inactivity, etc.
This is a good introduction into the study of Urban Legends. My negatives are all on the writing style of the book, and not the content. The presentation could have been much more accessible and interesting. While that may not matter as far as the quality of the information is concerned, it would have helped bring more people to a point where they can appreciate the topic and the significance of studying these stories.