A box truck is like a big toy truck, but instead of carrying toys, it carries things that people need to move from one place to another. It's like a giant moving van that is shaped like a square or a rectangle. On the front of the truck is the driver's seat where the grown-up who is driving the truck sits. In the back of the truck, there is a big box that is usually made of metal or some other strong material. This box is where all the things to be moved are stored. The box on the truck has big doors on the back so that the grown-up can easily load things into the truck and unload them when they need to be delivered to a new place. The box truck is a really helpful vehicle that helps grown-ups move and deliver things to different places.