These Little Blue Truck Puzzle Blocks are built on Jill McElmurrys rich colorful illustrations from the Little Blue Truck Series. These vibrant Puzzle Blocks set includes 9 board blocks that create a fun-shaped puzzle plus five stackable square shaped puzzles. Children will actively engage in logical and imaginative play as they assemble familiar scenes from Little Blue Trucks bestselling books. This puzzle is great for youngsters to develop hand-eye coordination and motor skills, advance sound recognition, and build pre-reading skills.