He has published widely on coloured identity and politics in South Africa. His recent books on the subject include Not White Enough, Not Black Enough: Racial Identity in South Africa’s Coloured Community (2005), Burdened By Race: Coloured Identities in Southern Africa (2009), and Against the Current: A Biography of Harold Cressy, 1889–1916 (2012). He now works primarily in the field of settler colonial genocide and published The Anatomy of a South African Genocide: The Extermination of the Cape San Peoples (2010) as well as an edited collection Genocide on Settler Frontiers: When Hunter-gatherers and Commercial Stock Farmers Clash (2014). He is about to embark on a project comparing the genocidal destruction of aboriginal communities in the Cape Colony, Queensland and California. Mohamed has served as the Vice-President of INoGS since 2015.