This lot of 4 Barbie doll collector books, titled "Barbie Doll Collector Books - A Decade of Barbie," provides a comprehensive guide to identifying and valuing Barbie dolls from the 1990s. Authored by Beth Summers, J. Michael Augustyniak, and Patrick C. Olds, these nonfiction books are intended for young adult collectors, ages 9-12, as well as adult collectors. The hardcover books include illustrations and are published by Collector Books in the United States, making them a valuable resource for Barbie enthusiasts looking to expand their knowledge and collection.
