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