The ABA is coming out with a new book entitled Becoming A Law Professor: A Candidates Guide. Brannon Denning, Marcia McCormick, and Jeff Lipshaw authored it.  According to an abstract of the book:

The authors provide detailed advice and resources for aspiring law professors, including a description of the categories of law faculty (and what they do), possible paths to careers in the legal academy, and "how to" guides for filling out the AALS's Faculty Appointments Register, interviewing at the Faculty Recruitment Conference (the "meat market"), issues for non-traditional candidates, dealing with callbacks and job offers, and getting ready for the first semester on the job.

Larry Solum has prepared a Foreward to the book called The New Realities of the Legal Academy.