Jack Mezirow (1923 - September 24, 2014)[1][2] was an American sociologist and Emeritus Professor of Adult and Continuing Education at Teachers College, Columbia University.
He was an Emeritus Professor of Adult and Continuing Education at Teachers College, Columbia University, New York,[5] and the founder of the Adult Education Guided Intensive Study (AEGIS) doctoral program at Teachers College, Columbia University.
Mezirow began his theory of perspective transformation when he studied adult women who chose to re-enter higher education.
[8] Mezirow's initial research and further study led him to surmise that adults do not simply make application of old ways of learning to new situations - instead they "discover a need to acquire new perspectives in order to gain a more complete understanding of changing events".
He then identified 10 stages that adult learners encounter as they experience perspective transformations.