We asked readers of the Lancashire 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 multiple photo galleries to show them all off.
13. World Book Day 13
L: Abi, age 7 months, as Chewie from Star Wars. R: The Very Hungry Caterpillar | submit
14. World Book Day 14
L: Kammy, age 5, as Willy Wonka. R: Sophia, age 7, as Hermione Granger | submit
4 / 4