Dozens of Dandenong kids and thousands of their peers around Australia read the same book at the same time.
Dandenong Library hosted about 30 children at a National Simultaneous Storytime event at 11am on Wednesday 25 May.
The annual even has been running for 16 years and aims to encourage more young Australians to read and enjoy books.
The Australian Library and Information Association features a picture book written and illustrated by an Australian author and illustrator.
I Got This Hat written by Jol and Kate Temple and illustrated by Jon Foye gives children a peek at the world around them through hats.
More than 500,000 children at 3100 locations took part last year.
Youth services worker Trent reads with the children.