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