World Book Day is held every year on the first Thursday in March to celebrate books and reading, and every child in full-time education receives a voucher to spend on books.

Alexia, eight, as Hermione from Harry Potter (Image: Jess Majercin)

We've gathered together pictures of children in their fantastic costumes.

For a chance for your child to be featured in the Herts Ad, email your pictures to anne.suslak@newsquest.co.uk.

Please include your child's name, the name of the character they are dressed as and the name of the person who took the photo.

Amelia-Rose as Alice in Wonderland (Image: Jessica Palmer)

Brooke Griggs, seven, as The Swan Princess (Image: The Swan Princess)

Emmeline Murray, eight, from Wheatfields Junior School, dressed as Tiffany Aching from The Wee Free Men by Terry Pratchett (Image: Andrew Murray)

Tillie, eight, as Matilda (Image: Sarah Coulson)

Chace, five, as Captain America and River, three, as Little Red Riding Hood (Image: Sophie Blanden)

Faith, nine, as the Cheshire Cat (Image: Angela Holahan)

Darcie Sinnott, 11, as Gangsta Granny (Image: Sam Sinnott)

Marlie Sinnott, nine, as Matilda (Image: Sam Sinnott)

Ariella Weston, three, as Matilda (Image: Lauren Weston)

Theo, in Year 3 at Bowmansgreen Primary School, dressed as Terrible from Hamish and the Worldstoppers by Danny Wallace (Image: Angela Duce)

Melody Payne, eight, from London Colney as Mirabel from Encanto (Image: Tracy Payne)

Ollie Sheard, 10, from Cunningham Hill Junior School as Greg Heffley from Diary of a Wimpy Kid (Image: Karen Sheard)

Eleanor as Lucy from The Creakers by Tom Fletcher (Image: Lee Wood)

Leo dressed as the Incredible Hulk (Image: Shannon Boylan)

Harry Bunney, three, dressed to go to nursery as Peter Rabbit (Image: Lydia Giles)

Grace Farr, three, from Wheatfields Infant's & Nursery School as Zog the Dragon (Image: Rachel Farr)

Ava Rosa as Nezuko Kamado from Demon Slayer (Image: Maria Fialho)