This is a vintage 1960s 11-lot Companion Library featuring 2-in-1 hardcover books with classic children's stories. Published by Grosset & Dunlap, these novels are aimed at ages 9-12 and include action, adventure, drama, fairy tales, folklore, and world literature. With a total of 14 units, the books are illustrated and authored by various writers. Each book measures 7.5 inches in height and weighs approximately 19 ounces.