Dr. Posnick has lectured around the world and authored more than 400 medical journal publications and book chapters. His earlier two volume textbook, published by W.B. Saunders, Craniofacial and Maxillofacial Surgery in Children and Young Adults, is considered an authoritative benchmark reference. His current comprehensive two volume textbook Orthognathic Surgery: Principles and Practice, published by Elsevier, captures current thinking for the evaluation and treatment of all aspects of dentofacial deformities. Through Posnick MD Consulting, Dr. Posnick maintains a leadership role in the healthcare industry including facilitating mergers and acquisitions and as an advocate in legal matters.