This is a three-part interview with Sir Robert S. J. Sparks, the Chaning Wills Professor of Geology in the Department of Earth Sciences at the University of Bristol. The interview begins with anecdotes from Sparks’ childhood and memories of undergraduate geological field trips while at Imperial College. He recalls the influences of John Ramsay and George Walker, the latter of whom became his PhD advisor. Sparks discusses Walker’s emphasis on writing and publishing, and he talks about some of his early publications. Sparks then describes his time in the U.S. at the University of Rhode Island, describing key differences between the scientific communities in the U.S. and Europe. The second session focuses on Sparks’ time at Cambridge, his teaching philosophy, and the culture within the Earth Sciences department at Cambridge. He discusses the different funding opportunities he secured from the NSF, NERC, and BP. Sparks recalls his sabbatical in Australia and recounts the factors leading to his appointment at Bristol. In the third session, Sparks reflects on his most influential papers over the years, as well as changes he has witnessed within Bristol’s earth sciences department. He discusses his involvement in the Royal Society and American Geophysical Union, as well as his time as President of both the Geological Society of London and the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI). The interview concludes with Sparks’ reflections on the many accolades he has received in his career and his thoughts on the role of scientists as public intellectuals.