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