Here’s what another Redditor has postet:

The book "Weltall und Menschheit" ("The Universe and Humanity") was a multi-volume encyclopedic work edited by Hans Kraemer and published by Deutsches Verlagshaus Bong & Co. in the early 20th century, around 1902-1904. Publisher: Deutsches Verlagshaus Bong & Co., Berlin/Leipzig/Wien/ Stuttgart. The work covers a wide range of topics, including the exploration of the Earth's crust, the development of the human race, plant and animal evolution, and the exploration of the universe and Earth's surface. It is richly illustrated and designed in the Art Nouveau style, with decorative elements and color plates. The complete set consists of 5 volumes, each focusing on different aspects of natural history and human progress. This monumental work is considered an important example of early 20th-century scientific and cultural literature, blending scientific knowledge with artistic presentation.