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.
Chronicle & Echo asked readers to send in pictures of their World Book Day costumes.
Below are just some of the photos we were sent of children in Northampton dressed as their favourite characters.
(We received more than 200 photos from proud parents. We have published as many as we can).
25. World Book Day 2025 in Northampton
Luna, aged eight, as Glinda the good witch, Newton, aged six, as Willy Wonka and Odin, aged nine, as Dave Pilker (the author of Dog Man and Captain Underpants). Photo: Submitted
26. World Book Day 2025 in Northampton
Indy and Isla as Willy Wonka and Violet Beaureguard. Photo: Submitted
27. World Book Day 2025 in Northampton
Thomas, aged seven, as Fantastic Mr Fox and Aurora, aged four, as Elsa. Photo: Submitted
28. World Book Day 2025 in Northampton
Everleigh, aged five, and Nellie, aged three, as the Gruffalos. Photo: Submitted