Each year since 1945 the CBCA has brought children and books together across Australia, without fail The Costume Company Brisbane has ensured to deliver the Costumes and Disguises to match the theme. Affordable Book Week accessories Brisbane, CBA. Costumes for Old Worlds, New Worlds, Other Worlds. Can I buy CBCA Book Week costumes online at the Costume Shop? YES you can! We love to support this cause as much as we can. Where to buy Book Week Costumes in Brisbane ? The Costume Shop Brisbane or Australia Wide Fast Delivery.