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!
Holly, 5, is Mildred Hubble, The Worst Witch
Matilda is Wish from the Wizards of Once!
Twins Eva and Matthew are Paddington and Mr Gum
Megan’s Poppy/ Matilda from Shadow House
Georgie’s dressed as Emmeline Pankhurst!
Erin’s dressed as Hermione!
Julia, 9, is Willy Wonka!
George is Commando from the comic books!
Savannah & Dominic are Postman Pat & Ben 10 Alien.
Heidi and Darcy are both Gangsta Grannies!
Jessica’s gone as Dorothy this World Book Day!
Callum, 8, is the Tin Man this World Book Day!
Nathan, 5, is an Elf this World Book Day!
This one’s very apt! Jamie, 11, is Jon Snow!
Luke, 11, is celebrating World Book Day as Burt!
Alex, 11, has dressed up as Wally from Where’s Wally!
Lucy, aged 9, is dressed as Matilda!
Ayden, aged 4, is dressed as PC Selby from Postman Pat
Maya, 8, is Tracey Beaker!
Saoirse and Niamh is Thing 2 and Red Riding Wolf!
Megan’s The Mad Hatter and Alice from Alice’s Adventure’s
Lacie, Brandon, Morgan are Repunzel, Walking with dinosaurs, Maleficent
Bethan, 10, is Miss Root from The Demon Dentist!
Lewis is dressed as The Grinch!
Kevin from Kevin by Rob Biddulph
Tiffany is Mildred Hubble, The Worst Witch
Emily’s Pippi Longstocking!
Sophie’s Mildred from The Worst Witch!
Rylie, 8, is celebrating World Book Day as Billionaire Boy!
Sophie, 10, is the Mad Hatter this World Book Day!
Megan, 11, is Adam Meltzer from Memoirs of a Neurotic Zombie!
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
Lucy, 6, is a turtle for an under the sea theme
Tippi and Ava are Orange crayon from the day the crayons quit and penguin from lost and found
Scarlett, 5, is the Little Mermaid!
Maddie, 9, is Shirley from “Wave Me Goodbye”!
Erin, 7, is Gangsta Granny!
Aayushi, 10, is the Queen of Hearts!
Chris sent this to us on social media; It’s Roald Dahl from his RAF days and Isadora Moon!
Jasper’s dressed as Bear Grylls!
Amelia Fang from Amelia Fang and The Barbaric Ball
Teddy and Clara are Bert and Mary Poppins!
Jack-James is Willy Wonka!
Noah, 8, has dressed as The Boy in The Dress!
Ana, 5, is The Little Mermaid!
Polly is the Hungry Caterpillar!
Phoebe-Jean’s dressed as Amy Cluckbucket!
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