Incoming Resources
- Green Tractor, by Kersten Hamilton ; illustrated by Valeria Petrone
- Otis and the puppy, Loren Long
- Otis and the scarecrow, Loren Long
- Otis, Loren Long
- All of the factors of why I love tractors, written by Davina Bell ; illustrated by Jenny Løvlie
- Otis's busy day, by Loren Long
- Go, go, tractors!, by Candice Ransom ; illustrated by Mike Yamada
- Tractor, Sally Sutton ; illustrated by Brian Lovelock
- Otis and the puppy, Loren Long
- Otis and the kittens, Loren Long
- An Otis Christmas, Loren Long
- Otis and the kittens, Loren Long