His master read Fine Arts and English at Natal University, South Africa and holds a Higher Diploma in Education. After teaching for two years in Cape Town he took a copywriter's job in advertising. There he met John Bush, who would later go on to collaborate with him on three picture books. Since 1986 he has lived in London, UK.[2]
Geraghty’s picture books typically centre on wildlife/environmental themes, either treated in a highly realistic manner, rich in detail, or irreverently stylised, usually illustrated in watercolour.[3] Translated into over 20 languages internationally, his work has won various awards, including the Red House Children's Book Award for Solo in 1996.[4]
In 2008, he translated the ancient Indian ethical treatise of the Tirukkural into Fijian.[5]
A frequent lecturer and live illustrator on the literary circuit, he is renowned for his inspirational, if eccentric style with audiences of all ages.
^Dev Nadkarni and Padmini Gaunder (10 July 2009). "And Now, Thirukkural in Fijian". The Indian Weekender. The Indian Weekender. Retrieved 20 November 2023.