Dr. Carl M. Allen is Emeritus Professor of the Ohio State University, College of Dentistry, retiring after 36 years of teaching. Dr. Allen received his DDS from Ohio State in 1975, and trained in oral and maxillofacial pathology at Indiana University from 1978 to 1980. During his time at OSU, Carl was active in seeing clinical referral patients as well as participating in the biopsy service. He has been a Diplomate of the American Board of Oral and Maxillofacial Pathology since 1983 and completed a six-year term (1994-2000) as Editor of the American Academy of Oral and Maxillofacial Pathology. He was President of the AAOMP in 2004 and was a Director of the American Board of Oral and Maxillofacial Pathology from 2005 to 2013. Dr. Allen has published over 125 refereed articles in dental and medical journals, and has written chapters dealing with oral disease for texts in the fields of otolaryngology, microbiology, dermatology and surgical pathology. Two of his more significant contributions, however, were as a co-author and co-editor of the textbook, Oral and Maxillofacial Pathology by Neville, Damm, Allen and Bouquot, which is in its fifth edition, and the Color Atlas of Oral and Maxillofacial Diseases, by the same authors, published in 2019.