Creator: Dr. Harold H. Mosak
Title: Harold H. Mosak Collection
Date:  1908-2014
Abstract: Collection contains some 2000 items, mostly printed and published materials, correspondence, some press, and other ephemera related to the study and teaching of Adlerian psychology. The collection was acquired from Dr. Harold H. Mosak in 2014.
Quantity: 177.5 linear feet
Location: Adler Graduate School, Research Center, Minnesota

Administrative Information

Restrictions on Access

Please contact the AGS librarian for access to the collection. Email

Restrictions on Use

Copyright is retained by the copyright holders.

Preferred Citation

Harold H. Mosak Collection, Adler Graduate School Archives, Adler Graduate School, Minnetonka, Minnesota.


The collection was acquired by Adler Graduate School from Dr. Harold H. Mosak in 2014.

Processing Information

Processing of the collection began in July 2015, and was completed in December 2015 by Kate McManus, MLIS. The finding aid is updated as materials are made available, though the collection is considered closed.


The collection contains the following series:

General Collection

Dreikurs Collection

Moask Collection

Adler Collection

First Generation Collection

Journals Collection

Foreign Language Collection

Mosak Master Lab Collection (boxes)

Historical Note

The items in the collection, particularly in the Adler and the First Generations, document the earliest days of the study of psychology, though many materials reflect the changes the profession has seen. The items in the General Collection document development of psychological research and practice up to the present day, but the bulk of the collection relates to Dr. Mosak’s studies and teachings and includes work from his contemporaries, including Dr. Rudolf Dreikurs, and scholarship that builds off Dr. Mosak’s work.

Scope and Content Note

The collection contains published materials, scholarship, ephemera, and press, created by the Adlerian community at large, and collected by Dr. Harold H. Mosak, as well as his teaching materials, writings, ephemera, and his correspondence.