The Walther Collection is an art foundation dedicated to the critical understanding of historical and contemporary photography and related media. Through a program of international exhibitions, in-depth collecting, original research and scholarly publications, The Walther Collection aims to highlight the social uses of photography and expand the history of the medium. The collection's diverse activities are centered on its expansive holdings of African, Chinese, Japanese and European modern and contemporary photography and media, nineteenth-century photography from Europe and Africa, and vernacular lens-based imagery from across the globe. Steidl's books with the collection include Events of the Self: Portraiture and Social Identity (2010), Appropriated Landscapes (2011), Distance and Desire: Encounters with the African Archive (2013), Recent Histories: Contemporary African Photography and Video Art (2017), Samuel Fosso's AUTOPORTRAIT (2020) and Jo Ractliffe's Photographs 1980s - now (2021).