This seasonal Costco value set brings together 8 middle-grade books from a curated selection of publishers, designed for young juvenile readers. Assembled as a Unit 3 collection for summer reading, the set features titles from various publishers spanning popular genres such as adventure, fantasy, humor, and realistic fiction suited for readers approximately ages 8–12.

Each book in the set is a full standalone title, offering a diverse reading experience in a single purchase. Costco's seasonal multi-publisher book collections are well known for offering popular and newly released middle-grade titles at significant savings compared to individual retail prices. Specific titles included in the set vary by warehouse location and availability.