Arp: Paper

Arie Hartog is director of the Gerhard-Marcks-Haus in Bremen, Germany, where he oversees a joint initiative by the museum and the Stiftung Arp e.V. to advance scholarship on Arp. He is the author of Hans Arp: Skulpturen - Eine Bestandsaufnahme/Sculptures - A Critical Survey (2012) and takes a special interest in the artist's studio practice.

Loretta Würtenberger is the founding director of the Institute for Artists & Estates. She has been advising and planning artists' estates for more than two decades and is the author of The Artist's Estate: A Handbook for Artists, Executors, and Heirs (2016). Würtenberger is also coeditor of the Stiftung Arp Papers and director of Schlossgut Schwante Sculpture Park.

Anna Schrader is a curator at the Gerhard-Marcks-Haus, where she looks after its holdings of Arp's work and is responsible for research on him and Sophie Taeuber-Arp. She is editor of the website www.sophietaeuberarp.org, which presents the full spectrum of the artist's work.

Friederike Bolte is pursuing an MA at Bremen University. Her scholarly focus is Arp's prints and she works at the Gerhard-Marcks-Haus as a research assistant.