Get to know things that go in these action-packed board books featuring sliding counters!Discover different building site vehicles in this series of interactive board books with easy-to-use moving parts. Learn vehicle vocabulary with simple first words, clear diagrams and helpful text prompts to encourage discussion. Then trace the transport around different tracks with a moving counter on every spread and the cover. The perfect book for children who love diggers and dump trucks - and being in the driving seat! Other titles in the series include: Farm