Youngsters and their families demonstrated great ideas and originality to join in the fun activities centred around the world of books and reading.
Schools around Sleaford and district invited pupils to dress up as their favourite book characters, bring in their favourite books and share in literary activities.
Here are more images that you sent in.
9. mssp-08-03-23-WBD bump stick hufflepuff.jpg
Archie, age 5 as Mr Bump; Hattie aged 5, of Sleaford wearing her 'stick girl' outfit from the Stick Man book; a young Hufflepuff, aged 7, of Sleaford. Photo: ugc
10. mssp-08-03-23-WBD sofia edith evelyn maisey.jpg
Sofia-Grace, aged 3, Ruskington; Edith, aged 3 from Ruskington dressed as Veruca Salt from Willy Wonka; Evelyn 8 and Maisey 6 from Sleaford. Photo: ugc
11. mssp-08-03-23-WBD blake megan evan jasmine chloe.jpg
Blake Savill aged 5 as Spider-Man, Megan Savill aged 8 as Amelia Fang, of Holdingham; Evan, age 9 from Sleaford; Jasmine 8 and Chloe 5, of Cranwell as Matilda and Miss Honey. Photo: ugc
12. mssp-08-03-23-WBD Amelia Paisley Esme Nancy Jesse.jpg
Amelia 10 as Wednesday and Paisley 5 as Alice in Wonderland, from Sleaford; Esme 5 of William Alvey School, Sleaford as Little Red Riding Hood; Nancy Garwell aged 6 and Jesse Garwell aged 4, from Sleaford. Photo: ugc