The product is a set of three paperback books titled "The Human ROLE IN SPACE Vol 1-3 Final Report & Flight Center" by McDonnell Douglas. Published in 1984, these books delve into the history of space exploration and science, focusing on the role of humans in space missions. Written in English, these vintage books provide detailed insights into the author's perspective on space travel and its significance. This set is a valuable resource for anyone interested in the history of space exploration and the contributions of humans in the field.