And our readers captured 50 of them – check out these fantastic photos of Burnley pupils dressed as their favourite characters:
5. World Book Day
Miss Grillo, St Joseph’s Park Hill School, as Iron Man by Ted Hughes. Photo: s
6. World Book Day
Ninja Twins, Bradley and Toby Beattie, aged six-years-old. Photo: S
7. World Book Day
Alexander Emmett, 9, as Stick Man. Photo: s
8. World Book Day
Eryka, aged 8, dressed as Coco Chanel from ‘Fantastically Great Women Who Changed The World’. Photo: S