Sydney's biggest book fair offers 110,000 books, CDs, DVDs, jigsaws, games, vinyl records and stamp collections. It is massive undertaking relying on thousands of volunteer hours all dedicated to supporting Lifeline Harbour to Hawkesbury. Michael Cleary explains the history, how it all works and what visitors will experience at this exciting event. Knox Grammar School Wahroonga, 14-17 July 2022. www.lifelineh2h.org.au