Littlejohn was born in
Los Angeles, California and grew up in
La Habra, California, where he graduated from
La Habra High School in 1962. He went on to earn a Bachelor of Arts in speech from the
University of Redlands in 1966, followed by a Master of Arts in speech from the
University of Utah in 1968, and a Doctor of Philosophy in Speech Communication, also from the
University of Utah, in 1970. His thesis,
An experimental study of source credibility and communication exposure, was advised by Don. F. Faules. Littlejohn spent the core of his academic career at
Humboldt State University in
Arcata, California. He served as a professor in the Department of Speech Communication from 1970 to 1996. During his tenure, Littlejohn held several administrative roles. He was chair of the Department of Speech Communication between 1977 and 1980 and between 1988 and 1991, chair of the Department of Philosophy between 1989 and 1990. He was director of the Division of Interdisciplinary Studies and Special Programs from 1980 to 1984. During the 1984–1985 academic year, Littlejohn also served as a visiting professor in the Department of Communication Studies at the
University of Massachusetts Amherst. In 1994, Littlejohn relocated to
Albuquerque, New Mexico and joined the Department of Communication & Journalism at the
University of New Mexico, where he taught until 2015. From 1993 to 2010, Littlejohn also worked as a communication consultant. Together with Kathy Isaacson, he co-founded DLI Communication Consultants, a firm specializing in conflict management, strategic planning, public dialogue, mediation, and leadership development. == Books ==