Some children's books that are centered around dragons are "The Knight and the Dragon" by Tomie dePaola, "Dragon Makes New Friends" by Michael and Rachel Yu and "Dragons Love Tacos" by Adam Rubin and Daniel Salmieri. Older children may also enjoy "The Hobbit" by J.R.R. Tolkien.
"The Knight and the Dragon" is an illustrated book about a knight and a dragon who are destined to fight, but both are timid and know nothing about fighting. The book is intended for ages 4 to 8, and is published by Puffin Books.
"Dragon Makes New Friends" is about a lonely dragon who wants to play with human children. The book is intended for age 4 and younger, and is published by Fat Moon Books.
"Dragons Love Tacos" is about dragons who breathe fire only when they eat spicy salsa. It is meant for ages 3 to 7, and is published by Dial Books.
"The Hobbit" centers on the journey of a band of dwarves to recover their homeland from a dragon. It is appropriate for most readers aged 12 and up.
Another dragon book appropriate for older children is "Seraphina" by Tamora Pierce. The book takes place in a world where dragons can take human form and is published by Random House.