From Harry Potter and Matilda, to Spider-Man and Willy Wonka, today’s annual celebration of authors, illustrators, books and reading has been bigger and better than ever.
Here are 36 fantastic photos of Burnley bookworms in their colourful costumes.
5. World Book Day
Cora (4) -,Mr Bean Photo: NA
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Archie (7) - Iron Man Photo: NA
7. World Book Day
Mia (6) - Veruca Salt (with her handmade Golden Ticket) Photo: NA
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Isaac Briggs (5) - Harry Potter Photo: NA