Answer
Gerhard Richter has collaborated with other artists, such as Sigmar Polke and Thomas Schütte, on various projects over the years. For example, in 1990, Richter and Polke created a series of paintings together titled "Two Men in a Boat". In 2002, Richter and Schütte collaborated on a project titled "Atlas", which consisted of a series of photographs of Schütte's sculptures.