Dive into the world of story book characters and popular movies with our cool collection of Boys World Book Day Costumes. We have many different and unique outfit ideas to impress boys of all ages and interests! World Book Day takes place every year, giving every child the opportunity to receive a book of their own. It's tradition to dress up in character costumes in schools across the country and your little one will no doubt be looking forward to the event. Your little book worm is about to step into character this March with our collection of fantastic boy’s World Book Day Costume ideas. Treat them to our range of magical Harry Potter Costumes and watch them cast spells this March. Our mischievous and slightly cheeky Horrid Henry Costume is a great choice for the occasion every year! Or how about our Willy Wonka Costume? It’s perfect for boys that have an extremely sweet tooth. There's something for everyone; both fictional and factual! Shop our full collection of Boys World Book Day outfits here.