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