From a well-researched and funny commentary on a mysterious question:
I came to teaching midcareer, without a doctorate, and didn't give much thought to what I wanted students to call me. Somehow "Ben" didn't seem right--even though, in the professional world, college-student interns always had called me that, no problem. What I wasn't prepared for was being addressed as "Dr. Yagoda." I corrected that the first couple of dozen times, then stopped when it became clear that my quip of choice--"I'm not a doctor, but I play one on TV"--wasn't funny. I realized, in any case, that I had to give students a clue to my preference, so I started signing e-mails and syllabuses "Prof. Yagoda."LINK: Ben Yagoda's essay "What Should We Call the Professor?"