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