In January 2014 Dieter Nusbaum and Dirk Groß founded the artist group "Überkopf - Kunst begenen" with the art collector Thomas Hoffmann.
In June 2014, Thomas Hoffmann opens the Überkopf Galerie based in Münster / Westfalen.
In 2018, the gallery will be renamed Overhead Gallery.
The program of the gallery is limited to contemporary painting and graphics, photography, sculptures and installations. The Overhead Gallery stands for international established and emerging artists. Independent positions of contemporary art are given special attention. Thomas Hoffmann introduced himself as an intermediary between them, buyers, collectors and art lovers.
There are regular exhibitions in the gallery rooms. In addition to the classic gallery work, one focus is to show art in unusual places.
The Overhead Gallery regularly participates in international art fairs.