Ten Gallon Hat is a children's book written by Shannon Garst. The book tells the story of a young boy named Billy who dreams of becoming a cowboy. One day, he receives a ten-gallon hat from his grandfather, and he is determined to prove himself as a true cowboy. Billy sets out to round up cattle, ride horses, and lasso anything in sight. However, his adventures don't always go as planned, and he learns that being a cowboy is not as easy as it seems...