Roderick Floud has taught modern British history in the UK and the USA; his recent research has used information on human height and weight to explore changes in living standards and he is one of the founders of the sub-discipline of anthropometric history, summed up in The Changing Body (Cambridge, 2011) which has been widely praised. He wrote the first textbook of quantitative methods for historians and has edited all four editions of The Cambridge Economic History of Modern Britain. Roderick has also written extensively on higher education policy and received a knighthood for services to higher education. He is a Fellow of the British Academy and an Academician of the Social Sciences. He is a Research Associate of the National Bureau of Economic Research in the United States and is currently Chair of the Social Sciences Committee of the European Science Foundation. He has recently embarked on a new research study of the economic history of British gardening. Jane Humphries is Professor of Economic History at Oxford University where she teaches economic and social history at both graduate and undergraduate levels. Her research has ranged across many issues to do with growth and development. She has also published extensively on gender, the family and the history of women's work. Her recent Ranki prize-winning monograph, Childhood and Child Labour in the British Industrial Revolution, involves a bold and innovative use of working-class memoir, studied both quantitatively and qualitatively, a methodology that she is developing further in her current study of women and girls' experiences of industrialization. She presented the recent BBC4 documentary, 'The Children Who Built Victorian Britain', which was based on her work. Professor Humphries is a Fellow of All Souls College, an Academician of the Social Sciences and a Fellow of the British Academy.