The product is a second edition value guide book titled "The Barbie Doll" by author Patrick C. Olds. Published in 1996, this book serves as a comprehensive guide for collectors interested in Barbie dolls from the years 1959 to 1996. With a focus on dolls, this English-language book provides valuable insights and information on the history, collectability, and market value of Barbie dolls from this specific time period. It is a must-have resource for collectors and enthusiasts looking to deepen their knowledge of Barbie dolls and their evolution over the years.