This is a Vintage Art Linkletter's Picture Encyclopedia For Boys And Girls Vol. 1 - 18, featuring mixed authors and published by Harwyn in 1961. The hardcover format is illustrated and the narrative type is nonfiction. This encyclopedia is intended for young adults, ages 4-8, ages 9-12, and adults. It is a great reference book for those interested in topics such as history, science, and culture. The original language is English and it was manufactured in the United States. This encyclopedia is vintage and would be a great addition to any collection.