This morning, we asked readers of the Blackpool Gazette to share their little one's fabulous costumes and they did not disappoint.
In fact we received so many great pictures - over 300 - that we have had to make two photo galleries to show them all off.
You can see part one of the World Book Day gallery here but look below at even more of the amazing costumes from across Blackpool, Fylde and Wyre...
Are you in need of some new books for you or your little one, here is our guide to the best bookshops in Lancashire.
1. Oscar, Cassius and Olivia
L to R: Oscar as Peter Rabbit, Cassius age 3 as Woody and Olivia age 8 as Wednesday Addams
2. Harry and Roman
L: Harry age 17 months as Winnie the Pooh. Right: Roman as Elmer the elephant
3. 'Thing 1', 'Thing 2', Stanley and Beatrice
L: Thing 1 and Thing 2. R: Stanley age 8 as Gandalf and Beatrice age 5 as Dorothy
6. Axel, 'Elmer the Elephant' and 'Hungry Caterpillar'
L: Axel age 15 months as Stitch from Lilo and Stitch. R: A 6-year-old Elmer the Elephant and 4 month-old Hungry Caterpillar