Friedrich Vordemberge-Gildewart (1899–1962), considered one of the masters of constructive and concrete art, played a pivotal, albeit understated, role in shaping the history of the avant-garde. Through exchanges with artists such as Piet Mondrian and Max Bill, he developed his visual language of international modernism. His paintings are found in international museum collections, from the Centre Pompidou in Paris to the Museum of Modern Art in New York, yet he was never among the most prominent representatives of classical modernism. This publication restores the artist's legacy by showcasing his life and work through selected photographs, bringing him to life as an artist, a person, and a contemporary. Together, the images form an informative and moving journey through a creative life. They convey not only the spirit of the times and contemporary history, but also a precise picture of how the avant-garde presented itself in the early 20th century.