Gideon F. Smith has authored numerous scientific papers, as well as popular works such as First Field Guide to Aloes (2003), Gardening with Succulents (2005), Cacti and Succulents (2006) and Aloes in Southern Africa (2007). Now retired, he was chief director for Biosystematics Research and Biodiversity Collections at the South African National Biodiversity Institute (SANBI) and Professor of Plant Science at the University of Pretoria.