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Top 5 Book Week Costume Ideas for 2026

Book Week is one of the most exciting events on the Australian primary school calendar. Every year, kids, parents, and teachers come together to celebrate the joy of reading by dressing up as their favourite characters. At Let’s Dress Up, we’ve been helping families celebrate Book Week for over 25 years. Many of our costumes are free-sized designed, which means they work beautifully for children, teachers, and library staff.

Here are five of our most popular picks.

  1. The Very Hungry Caterpillar,                     The Hungry Caterpillar Wings - letsdressup.com.au - Girls Accessories                                                                                                          Based on Eric Carle’s much-loved classic, where a little caterpillar eats his way through all kinds of foods before turning into a butterfly. Our colourful cape version is easy to slip on and perfect over everyday clothes. Great for preschoolers, primary students, and even teachers reading Eric Carle stories.                             
  2. The Gruffalo   From Julia Donaldson and Axel Scheffler, this tale of a clever mouse and a fearsome creature is a Book Week staple. Our Gruffalo costume is comfortable, instantly recognisable, and ideal for parades and classroom storytelling.                                              
  3. The Rainbow Fish                                                                  The Rainbow Fish - letsdressup.com.au - Girls Dress UpsMarcus Pfister’s shimmering fish learns that kindness and sharing bring true happiness. It’s a heartwarming story, and the costume is bright, colourful, and great for standing out. Perfect for students, teachers, or librarians.                                                                  
  4. Where’s Wally                                                                            Where's Wally ? - letsdressup.com.au - Book WeekMartin Handford’s classic books challenge readers to spot Wally hidden in busy scenes. The costume is fun, simple, and always a crowd pleaser.                                                                                           
  5. Diary of a wimpy kid                                                                      Diary of A Wimpy Kid - letsdressup.com.au - Book WeekJeff Kinneys's series about an everyday school kids adventures is hugely popular with primary kids, a simple comfy costume makes a fun, recognisable choice for book week parades.                                                                                                                   Parents often tell us they want costumes that are comfortable enough to wear all day, quick to put on, and durable enough to use again for school plays, parties, and other dress-up days. Teachers also love that many of our costumes can be worn by different staff members year after year.                                           Book Week is about celebrating stories and inspiring kids’ imaginations. Whether your child dreams of being the hungry caterpillar, the Gruffalo, Rainbow Fish, Where’s Wally, or another favourite character, there’s a costume to help bring that story to life. Explore the full Book Week costume collection at www.letsdress up.com.au,


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