Are you asking if there are books about each dental school, much like Cliff Notes? If so, the answer is no. Some sources, such as the ADEA, Barron's, and so on publish their own guides and references to dental schools. These are great starting points and this is where I started my 'knowledge base' of dental schools. Beyond that I have discussed dental schools with current practitioners, dental students, and fellow undergraduate students (not to mention going through the application/interview process and seeing some of these schools first hand) and through such networking one can easily get a good feel for many dental schools and what their preferences, programs, etc. are. Hang around on SDN long enough, combined with your own personal research, and you'll be chiming in on school discussions as well.