From Harry Potter, to Willy Wonka – from Mary Poppins to Gangsta Granny, amazing costumes are on show every year.
Children across Derbyshire are to set to go school dressed as their favourite book characters for the annual event on Thursday, March 5.
The day is an annual charity event held on the first Thursday of March every year to provide every child in full-time education with a voucher to be spent on a book of their choosing.
World Book Day aims to encourage reading for pleasure amongst children and is promoted in more than 100 countries around the globe.
Schools often ask both pupils and teachers dress as their favourite book characters.
We have taken a look back at some amazing outfits - and we look forward to seeing all of your new costumes next month!
33. Turnditch C.E. Primary School
Even the school dog got in on the fun at Turnditch C.E. Primary School, Belper Photo: submit
34. Stanton Vale School
Pupils and staff from Stanton Vale special school, in Long Eaton. Photo: submit
35. Whittington Junior School
Whittington Junior School year 5 and 6 pupils. Photo: Brian Eyre
36. All Saints' CE Infant School
Pupils at All Saints' CE Infant School, Dimple Road, Matlock, celebrate World Book Day Photo: submit