All sets have two decks of cards (except My First, which has three), with each deck hinged together by a plastic bolt. Early Childhood sets have full-color illustrations and are designed for play-and-learn moments, emphasizing development, not testing. Sets for older kids have categories of questions coordinated by symbol. Answer cards immediately follow question cards. Printed on durable stock, each set is packaged in an unbreakable clear box with a color-coordinated lid.

Selection of the Book-of-the-Month Club, Scholastic Book Club, and Newbridge Book Club.

"Brain Quest" goes beyond simple memorization and encourages kids to use reasoning, listening, and visualization skills, which increases its educational and entertainment value." -- Sesame Street Parents