The author is an Associate Professor in Physical Geography at the School of Geography, Archaeology and Environmental Studies of the University of Witwatersrand, Johannesburg, South Africa. He was awarded his Ph.D. from the University of Natal in Pietermaritzburg in 1998. Dr. Grab is a member of the South African Society for Quaternary Research, of the South African Society for Quaternary Research and of the Southern African Geographical Society. He works as a book review editor for The South African Geographical Journal.