Stephen Read is Professor Emeritus of History and Philosophy of Logic at the University of St Andrews. He is the author of Relevant Logic (Blackwell 1988) and Thinking about Logic (1995), editor of Sophisms in Medieval Logic and Grammar (1993), and editor and translator of Thomas Bradwardine: Insolubilia (2010) and translator ofJohn Buridan: Treatise on Consequences (2015), as well as many articles on contemporary and medieval philosophy of logic and language.