Counting is child's play, but the journey to the numbers is rarely as fun and imaginative as in this cardboard picture book. On 24 colorful pages, the numbers 1 to 10 are shown and hidden in countless objects and details. Even the youngest will enjoy going on a number hunt and counting along. For example, the vehicles that Otto passes by: cars and tow trucks, construction vehicles and buses, tractors and taxis - or the cheerful animal circus that is traveling with them: strong rhinos, funny monkeys, and speedy snails. In the end, everyone comes together again on a large ferry. There, little math enthusiasts can recount all the vehicles on a fold-out board.