The key idea of this book is that, because by definition it takes place within a physical structure, burglary is an architectural crime. Therefore, taking a closer look at how burglars succeed can tell us about the design of buildings and cities. For example, Los Angeles freeways make the city a haven for high-speed chases and bank robberies.
Burglars’ sills also include social engineering (e.g. asking to see blueprints for a potential target), attention to detail (such as creating an exact replica of a bank vault), and the ability to leverage everday objects in unexpected ways (by using styrofoam to fool thermal alarm systems, for example).
If you are wondering which film the author says best exemplifies these ideas, it is Die Hard (p. 226).