Walter learned the publishing operation starting as a warehousemen and billing clerk, before becoming vice director and joint owner.

Authors such as Alfred Andersch, Peter Bichsel Helmut Heissenbüttel, Alexander Kluge, Kurt Marti, and Jörg Steiner were published, but not Otto F.

[2] Walter's program found little support in the conservative company, nor in his Catholic family, despite a stable financial base.

In the following decades the Psychology according to Jung became influential, inter alia with the works of Verena Kast and Eugen Drewermann, and even Wilhelm Reich's Christusmord was released.

By the end of 2009, Patmos separated psychology and religion, and re-activated the Walter Verlag, though this lasted only for a year.