In this wide-ranging interview Andrew Sayer discusses how he became a realist and then the development of his work over the subsequent decades. He comments on his postdisciplinary approach, his early work on economy and its influences, how he came to write Method in Social Science and the transition in Realism and Social Science to normative critical social science and moral economy. The interview concludes with discussion of his three most recent books and the themes that connect them, not least the ongoing problem of a ‘diabolical double crisis’ of capitalism: extreme inequality and climate change.