Book Day Costumes
Thursday 5 March 2026
Harper Collins Book Suggestions!
We have proudly teamed up with Harper Collins Book Publishers to bring you their favourite 2026 World Book Day costume ideas and inspirations! If you're yet to decide on a costume, there's no need to panic, just read our blog post 8 Iconic World Book Day Costumes Inspired by Popular Books and follow the advice from the experts!
For the fans...
Explore our range of officially licensed Book Day costumes, featuring famous characters loved by young readers and viewers alike. From classic stories to big-screen favourites, these costumes deliver instant recognition and standout style Book Day.
For the dreamers...
Step into a world of magic with our Unicorn Academy™ costumes, inspired by one of this year’s official £1 World Book Day books. Perfect for young readers who love friendship, adventure and a little sparkle, these enchanting outfits bring the story to life in the most magical way.
Looking for inspiration?
Find it wherever their imagination takes them.
World Book Day is the perfect excuse to let imaginations run wild, and at Smiffys we’ve got Book Day costume ideas to suit every story, character and classroom theme. Whether you’re planning ahead or pulling together something last minute, our collection of Book Day costumes for kids and Book Day costumes for teachers makes dressing up easy, fun and stress-free.
From instantly recognisable favourites to creative twists on classic books, you’ll find outfits inspired by much-loved characters and stories. Go bold with colourful Dr Seuss costumes, keep it simple with a striped top and hat for Where’s Wally, or bring a storybook to life with cute and cuddly animal costumes that are perfect for younger children. If the brief is “simple but effective”, our accessories range is packed with masks, hats, capes and props that transform everyday clothes into Book Day gold.
Looking for something educational as well as fun? Our When I Grow Up costumes are ideal for inspiring young readers, with outfits like police officers, firefighters and doctors that tie perfectly into books about real-life heroes. For classic storytelling themes, explore fairytale costumes, brave pirates, fierce Vikings, and fascinating historical characters that work brilliantly for both kids and teachers.
Teachers, we haven’t forgotten you. Our Book Day costumes for teachers include comfortable, classroom-friendly outfits that still bring the wow factor. Ideal for group themes, assemblies or just getting involved without sacrificing practicality. Whether you’re leading story time or judging the best costume competition, there’s something to suit every teaching style.
With options ranging from full costumes to easy accessories, Smiffys makes it simple to create memorable World Book Day looks without the fuss. However you choose to celebrate, our Book Day fancy dress ideas are designed to spark creativity, encourage a love of reading, and most importantly, make Book Day unforgettable.