Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
The annual celebration of children’s literature has grown hugely popular in recent years, with the vast majority of students attending school in fancy dress.
The Mercury asked parents to send in pictures of their youngsters in their costumes, and we have collated the best for our online gallery.
More pictures will be added throughout the day so find the Mercury on Facebook and submit your photos.
You can also submit pictures via iWitness.
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
A full round-up will be in the Mercury on March 14.
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
Some amazing pictures have been submitted for the Mercury's World Book Day gallery. (Image: Archant)
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