The Kiddie Lit characters that keep Miss Diana company in the library  (in order of appearance):

 

Speckled Frog

Spot

Mickey Mouse

Snuffapulagus

Cat in the Hat

The Big Nutbrown Hare

Horton

The Hungry Caterpillar

Boo

Dory

Pete the Cat

Curious George

Clifford

Llama in Pajama

Flower

Thumper

Bambi

Splatt the Cat

Dumbo

Timothy

Olaf

Friendly Dragon

The King

Klara the Princess