A reserve price is the minimum price the seller will accept. This price is hidden from bidders. To win, a bidder must have the highest bid and have met or exceeded the reserve price.
This is the 1984, Discovery Toys "Think-it-Through" set, including 6 books for 5-year-olds, 3 books for 8-year-olds, and the book on matching shapes. The No. 10 tile is missing from the tile set. All the books are in very good condition.