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