There were no children or teachers at Nyngan Public School on Thursday.
Instead the school was filled with magical creatures and characters, superheros, footy players and loads more.
There was an absence of teachers as well, instead the cast of Jack and the Beanstalk took their place.
Along with the three little pigs, Jessie from Toy Story, Miss Frizzle from the Magic School Bus, Old Mother Hubbard, Alice in Wonderland and the Queen of Hearts, a well dressed wizard and many more.
Check out the gallery to see the myriad of characters at the Nyngan Public School Book Week.
Who did you dress up as at Book Week when you were at school? Let us know by commenting on Facebook or email a photo of you at Book Week to firstname.lastname@example.org