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 "