Many left their normal school uniforms at home on Thursday, March 6 and instead dressed up for the day as characters from their favourite books.
Photographer Tony Hendron took these great pictures when he popped into St John The Baptist Primary School / Bunscoil Eoin Baiste, Ballyoran Primary School, Hart Memorial Primary School and Millington Primary School.
We also asked our readers to share photos of their children dressed up in their fun costumes and we were delighted with the response. Thanks to all who shared their pictures with us.
21. World Book Day
Classroom assistants at Hart Memorial Primary School dressed for the occasion on World Book Day on Thursday. Included are from left, Vanessa Costa, May Somerville, Patricia Costa, Katie Williamson and Rachel McAdam. PT09-211. Photo: TONY HENDRON
22. World Book Day
P3 pupils and staff at Ballyoran Primary School looking the part on World Book Day. PT09-209. Photo: TONY HENDRON
23. World Book Day
Ballyoran Primary School pupils and staff dressed up for World Book Day. Including teachers back row from left, Anna Muldrew, Ashley Biggerstaff, Richard Woolsey, school principal and Hanna McConville. PT09-210. Photo: TONY HENDRON
24. World Book Day
P7 pupils and staff of Millington Primary School Enjoying the fun of World Book Day. PT09-223. Photo: TONY HENDRON