Otter B Helpful is the fourth in a series of six children's books that teach young children basic biblical character traits. In this book, Otter learns to be helpful when his grandparents come for a visit. Each book includes an appropriate Bible verse, and Otter B Helpful ends with this rhyme about the lesson: "There's always lots of work to do in every family. God says that helping out is best. It's how you Otter Be!"