National Simultaneous Storytime (NSS) is held annually by the Australian Library and Information Association (ALIA).

Every year a picture book, written and illustrated by an Australian author and illustrator, is read simultaneously in libraries, schools, pre-schools, family day cares, childcare centres, family homes, bookshops and many other places around the country. 

Now in its 24th successful year, it is a colourful, vibrant, fun event that aims to promote the value of reading and literacy, using an Australian children's book that explores age-appropriate themes, and addresses key learning areas of the National Curriculum for Foundation to Year 6.