We’re uploading loads of them every day to this gallery so you can show-off your dress-up skills to all your mates!
Check out some of our fave photos below. If you spot yourself, let us know in the comments below!
Scarlett, 5, is the Little Mermaid!
Erin’s dressed as Hermione!
Savannah & Dominic are Postman Pat & Ben 10 Alien.
Bethan, 10, is Miss Root from The Demon Dentist!
Tiffany is Mildred Hubble, The Worst Witch
Nathan, 5, is an Elf this World Book Day!
Julia, 9, is Willy Wonka!
Tippi and Ava are Orange crayon from the day the crayons quit and penguin from lost and found
Matilda is Wish from the Wizards of Once!
Daisy Wart from You Can’t Make Me Go To Witch School
Sophie’s Mildred from The Worst Witch!
Phoebe-Jean’s dressed as Amy Cluckbucket!
Megan’s The Mad Hatter and Alice from Alice’s Adventure’s
Saoirse and Niamh is Thing 2 and Red Riding Wolf!
Amelia Fang from Amelia Fang and The Barbaric Ball
Megan’s Poppy/ Matilda from Shadow House
Lacie, Brandon, Morgan are Repunzel, Walking with dinosaurs, Maleficent
Jack-James is Willy Wonka!
Ayden, aged 4, is dressed as PC Selby from Postman Pat
Aayushi, 10, is the Queen of Hearts!
Lucy, aged 9, is dressed as Matilda!
Maya, 8, is Tracey Beaker!
Emily’s Pippi Longstocking!
Jessica’s gone as Dorothy this World Book Day!
Teddy and Clara are Bert and Mary Poppins!
Chloe and Amelia, 7 and 4, are sad as the snow has postponed World Book Day for them!
George is Commando from the comic books!
Georgie’s dressed as Emmeline Pankhurst!
Rylie, 8, is celebrating World Book Day as Billionaire Boy!
Lucy, 6, is a turtle for an under the sea theme
Polly is the Hungry Caterpillar!
Kevin from Kevin by Rob Biddulph
Luke, 11, is celebrating World Book Day as Burt!
Chris sent this to us on social media; It’s Roald Dahl from his RAF days and Isadora Moon!
Erin, 7, is Gangsta Granny!
Lewis is dressed as The Grinch!
Alex, 11, has dressed up as Wally from Where’s Wally!
Twins Eva and Matthew are Paddington and Mr Gum
Holly, 5, is Mildred Hubble, The Worst Witch
Jasper’s dressed as Bear Grylls!
Heidi and Darcy are both Gangsta Grannies!
Ana, 5, is The Little Mermaid!
Sophie, 10, is the Mad Hatter this World Book Day!
This one’s very apt! Jamie, 11, is Jon Snow!
Callum, 8, is the Tin Man this World Book Day!
Maddie, 9, is Shirley from “Wave Me Goodbye”!
Megan, 11, is Adam Meltzer from Memoirs of a Neurotic Zombie!
Noah, 8, has dressed as The Boy in The Dress!
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