His Italian background has inspired many of his novels and short stories, starting with Memories of Sunday Cricket in the Street and Talking to the Moon. Fusillo has written three novels, Sparring with Shadows (1997)-this first novel being nominated for the Italy in the World awards in 2000-and The Dons (2002) and Bruises (2004) published by Penguin Books Australia. He writes for the Aussie Bites children's series and his book was Uncorked. He is a regular contributor to the ethnic magazine Italy Down Under and his fiction has been published in Imago, Spring 1998. His short stories have been published in anthologies like Hunger and Other Stories published by the Australian Association for the Teachers of English and Wakefield Press in 2003. Many of his books have been written from personal experiences such as the Dons which relates to his Nonna.

Fusillo lives in Melbourne with his wife, son and daughter. He worked as a features writer for two international magazines. He completed a BA degree in Psychology at Melbourne University. The background of his stories tends to discuss the 60s and 70s when he was growing up as a first-generation Italian-Australian, but many of his stories apply to different cultures. He likes to explore manhood. He attended a boys school, which was where he first learned of his flare for writing. His year 10 teacher who helped and encouraged him to write. Fusillo learned the pain of death from an early age, when he lost a dear friend in a tragic accident. The two boys where playing on top of a wheat silo with some other mates when the boy slipped and died instantly. Archi had to call the boys mother... Archi has also had to live with his Nonna getting Dementia. It was painful to see his Nonna with this. The kind,sweet lady he once knew was gone.

He has won the Alan Marshall Award and the Mary Grant Bruce Award for Children's Literature for his short stories, and The Dons received a Family Therapy Award for Literature. He is a popular speaker at the Melbourne Writers Festival especially on the Schools panels. He was also at the Mildura Writers' Festival and the Northern Writers Festival, and regularly speaks at schools in Melbourne and interstate.

In 2005 Fusillo was the judge for the Eastern Regional Libraries National Storywriting Competition.