In his academic career, Crockett Marr has worked with aspiring students from fifty US states and over fifty countries as well as the top high schools in the world. Today, Marr is recognized as a leading interpreter of the American higher education experience. Drawing from Marr's decade of experience as a domestic and international admission dean at a highly selective US college, Marr Education International provides insight, guidance, and consultation in the field of selective and highly selective college and university admission.

Alongside his academic service, Marr is a scholar of Classical languages, a competitive squash player, and an international skier and mountaineer.