The 1966 World Book Encyclopedia Complete Set is a comprehensive collection of 20 volumes, from A to Z, offering a broad range of subjects from Gender Relations to Library Science. Published by Field Enterprises, this hardcover encyclopedia set provides in-depth information in English on a wide array of topics. With a focus on education, this set caters to beginner, intermediate, and advanced levels, making it a valuable resource for students and scholars alike. The World Book Encyclopedia is a timeless classic that captures the essence of knowledge and information in the 1960s.