ICASSI is the longest-running international summer institute specializing in Individual Psychology. The 50th summer institute takes place in 2017, the golden Jubilee year.

ICASSI is a nonprofit educational organization with the mission to promote the study of Individual Psychology as taught by Alfred Adler and Rudolf Dreikurs. The principles and teachings of Adler and Dreikurs are appreciated more than ever.

Dreikurs started the first summer school in 1962 in Denmark. He encouraged professionals and lay people, managers and social workers, individuals and families, anyone all over the world to learn about the theory and practice of Individual Psychology. By now participants from about 25 nations attend ICASSI each summer in a different country. For more information please look at the list of locations.