Otter B Helpful is the fourth in the series of 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!"