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.
13. mssp-08-03-23-WBD Tillie-Mae Octavia Teddy Logan Finlay Louie.jpg
Tillie-Mae, 4, of Sleaford as Woody; Octavia 6, Teddy 7, Logan 7, from Sleaford; Finlay, aged 9 and Louie, aged 5 from Sleaford of Ancaster C of E Primary School. Photo: ugc
14. mssp-08-03-23-WBD Evelyn Jake Mia Teagan.jpg
Evelyn, aged 3, from Sleaford, wearing her reindeer jumper from That's Not My Reindeer; Jake and Mia aged 8 and 5, from Sleaford as Where's Wally and Red Riding Hood; Teagan aged 8, from Sleaford. Photo: ugc
15. mssp-08-03-23-WBD Kody Dexter Hattie Freddie.jpg
Kody Hollingsworth, from Sleaford, dressed as Willy Wonka; Dexter, 9, as Klaus Baudelaire from Lemony Snickets and Hattie, 4, as Snow White, from Sleaford. Photo: ugc
16. mssp-08-03-23-WBD Finley Goldilocks Grace.jpg
Finley, aged 10, as Billionaire Boy; Goldilocks; Grace, aged 6, of Heckington, dressed as Heidi. Photo: ugc