Happy World Book Day - take our quiz to see how much you know about popular books.

Today marks the 21st World Book Day - it is a day dedicated to celebrating your favourite books and authors.

The day is celebrated in more than 100 countries around the world.

A tradition for the day is for children and teachers to go to school dressed as their favourite story book characters.

Children will also receive a special £1 book token which allows them to purchase a new book from a selected list of titles.

The purpose of the day is to try and encourage people, children in particular, to read.

It is important to encourage your child to read as evidence suggests those that do read for fun develop a broader vocabulary and increased general knowledge.

See how well you do with our World Book Day, why not challenge your children too?