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