The product is a book titled "Rudolph Steiner's New Approach To Color On The Ceiling Of The First Goetheanum" by Daniel Van Bemmelen, published in 1980. It delves into Rudolph Steiner's innovative ideas on color theory, specifically exploring his unique approach to incorporating color on the ceiling of the First Goetheanum. The book is written in English, making it accessible to a wide audience interested in Steiner's theories and the use of color in architecture and design.
