This hardcover book is a valuable addition to any collector's library. Published by the National Aeronautics and Space Administration (NASA) in 1978, it presents the results of the Skylab Earth Resources Experiment Program (EREP) investigations. The book features a 1st edition and is an original copy, making it a rare find for enthusiasts. The book provides an in-depth analysis of the findings from EREP and showcases the extensive research and data collected during the Skylab mission. It is authored by the National Aeronautics and Space Administration, adding to its credibility as a reliable source of information. This book falls under the "Antiquarian & Collectible" and "Books & Magazines" categories, and would make a great addition to any space or science collection.