Warilla, Oak Flats and Albion Park libraries all participated in the event, at which libraries across Australia read Ursula Dubosarsky's Too Many Elephants In This House.

Simultaneous Storytime is organised by the Australian Library and Information Association (ALIA).

"It's been very popular every year we've had it, we get a large number of children from groups like preschools coming along on the day to our three libraries," Warilla library branch manager Imma Dacuto said.

"The message behind it is about helping young people improve and develop their literacy and numeracy skills."

By attracting a large number of people into the libraries, Ms Dacuto said events like Simultaneous Storytime were a great way of showcasing what libraries have to offer.

"Unless people are coming into the library often, there is that perception that it's just a building full of books, but in reality we are a lot more than that."

Libraries run a number of different programs for different age groups.