[5] His work incorporates clean lines, shapes, symbols and typography, repetition and recurrent motifs using a variety of materials and new technologies in 3D objects, sculpture, installation, graphite and ink drawings, photography, painting and tattooing.
Among those depicted include Frances Hodgkins, Ralph Hotere, Len Lye, Colin McCahon, Damien Hirst, Captain James Cook, Michael King, Magic Johnson, E.T.
This catalogue accompanied Youle's solo presentation '9:54 | 3:49' with {Suite} Gallery at Sydney Contemporary 2015, where portraits of Stephen Hawking, Lindy Chamberlain and Sidney Nolan were exhibited.
[8] Youle references the influence of other New Zealand artists in his work including Gordon Walters, Billy Apple, Shane Cotton, Peter Robinson, Ronnie van Hout and Michael Parekowhai, and Ricky Swallow of Australia.
In Skully Pops (2004) Youle depicts mokomokai (ancient preserved heads), as inviting, bright coloured lollies that at the same time are an anathema to eat.
The title of the work is a political play on the local Frosty Boy ice cream marketing catchphrase, Often licked, never beaten while alluding to the social issue of family violence.
[12][13] This body of work showcases Youle's pop-artist style depicting an array of subject matter for example, historical relations with Sydney's indigenous population, skulls, half naked men and women's breasts.