Welcome to our World Book Day costumes category, where you’ll find outfits for adults and kids based on the latest and greatest books around. World Book Day is a celebration of everything reading, and schools across the globe dress up to celebrate this highly anticipated day. Are you looking for cool World Book Day outfits for your kids? Maybe you’re a teacher that wants to impress your classroom? Our World Book Day fancy dress includes options from classic storybook authors such as Roald Dahl, with his BFG, Matilda and James and the Giant Peach hits. Or how about David Walliams costumes? Newer characters Gangsta Granny, Billionaire Boy and Awful Auntie will be recognised by children everywhere. It’s the second most popular day of the year to dress up (alongside Halloween), so sit down with your little ones, brainstorm their favourite books and get inspired with World Book Day costumes from our fabulous collection.