1. This boy dressed as Katniss from The Hunger Games because he's as much of a badass as she is.
And here he is @caitlinmoran My son as Katniss because she is the hero and his fav character #WorldBookDay
2. Check out mini Johnny Vegas as an excellent Dark Lord orc.
Have a great #WorldBookDay everyone! Thanks for the inspiration @JamieTgamebooks We love your #DarkLord stories :)
3. The cutest of fictional BFFs.
Only on World Book Day would you see 007 and Mary Poppins together! #WorldBookDay
4. IRL Hermione and Harry have cast a spell to melt your heart with cuteness.
Happy World Book Day from my niece and nephew whose names, apparently, are Hermione and Harry.
5. And then something went BUMP! How that bump made us jump!
A great start to #worldbookday @SlinfoldP
It was your heart thumping with CUTENESS.
6. Cruella de CUTE. S/O to the 💯 angry Dalmatian too.
This kid is totally my spirit animal. Happy #WorldBookDay!
7. "Checking in to camp" cute.
@RealMGHarris @camphalfblood it was a close call between books!But we already had the tshirt!#Annabeth #WorldBookDay
8. Put this in yer pipes and smoke it, kids with less cool costumes.
@davidwalliams My very own Awful Auntie!! Wagner was our half term project. #WorldBookDay
9. S'up.
#WorldBookDay #ScorchTrials @kScodders there's a Crank in the house!
10. This kid's going to have a WHALE of a time at school today.
@i_am_mill_i_am He pledged it, we read (an abridged version) of it #readingdangerously #WorldBookDay
11. Spot the difference.
Compare and contrast #WorldBookDay
12. The most joyful Red Riding Hood going.
@bigjigstoys #WorldBookDay Little Red Riding Hood .my daughter looks happy in it :))
13. OMG this Very Hungry Caterpillar baby ❤️❤️❤️
@WorldBookDayUK #WorldBookDay
14. OMG this Cat in the Hat baby!! ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
The best Cat in the hat #WorldBookDay
15. All the clues point to adults losing it with "Ahhhhhhhhs" here.
@actionforchildr @WorldEricCarle #GiantWiggle #WorldBookDay
16. Smashing it for literary diversity. 💪
10-year-old Artie is smashing #WorldBookDay as #DavidWalliams 'Boy in the Dress' .. #WeNeedDiverseBooks
17. "I hate you for not letting me dress as a shark, parent."
Elementary my dear Watson #WorldBookDay
18. "Thanks for ruining our childhoods, Dad."
#WorldBookDay Forgot they had to be in costume, so they're going to school as pages 89 & 165 of the Argos catalogue
19. The least inconspicuous, but sweetest disguise.
Where's Joanna? #WorldBookDay in the Ransome household this morning.
20. As precious as the Ring itself.
Getting ready for #WorldBookDay snapchats!
21. 💅💅💅💅
@ransomriggs Movie Claire Densmore @raffichapman as Miss Peregrine #WorldBookDay @CBGActors
22. Guaranteed to melt your heart like chocolate in a hot car.
@MENnewsdesk #WorldBookDay Lewis age 5 dress as a... well, can you guess???
23. The Dog, the Witch and the Wardrobe.
Happy #WorldBookDay everyone! Can you guess what character Radley is dressed as?