Estés is a certified senior Jungian analyst. Her doctorate, from the Union Institute & University, is in ethno-clinical psychology on the study of social and psychological patterns in cultural and tribal groups. She often speaks as "distinguished visiting scholar" and "diversity scholar" at universities. She is the author of many books on the journey of the soul. Beginning in 1992 and onward, her work has been published in 37 languages. Her book Women Who Run With the Wolves: Myths and Stories of The Wild Woman Archetype was on the New York Times' bestseller list for 145 weeks, as well as other best seller lists, including USA Today, Publishers Weekly, and Library Journal.