It is with sadness that we announce that James Stewart, Professor Emeritus of Mathematics, died yesterday December 3 in Toronto. Jim received his Master of Science from Stanford University and his PhD from the University of Toronto in 1967 and worked for two years as a postdoctoral fellow at the University of London. His research specialty was harmonic and functional analysis. Jim was a faculty member in the Department of Mathematics and Statistics for many years, where he was renowned for the high quality of his teaching and was especially loved by his many students. Jim had an unusually deep understanding and appreciation of teaching and a real sympathy for his students. It was his special ability and dedication to teaching that allowed him to develop his series of calculus textbooks, which have been runaway bestsellers throughout North America for many years. Jim was perhaps Canada’s bestselling author of all time! Outside of mathematics, Jim loved music and was an excellent violinist and former member of the Hamilton Philharmonic Orchestra. He was also a connoisseur of architecture and his beautiful Integral House is one of the best-known examples of private architecture in Canada in the past decade. Jim was also a philanthropist, generously supporting music and mathematics in many ways. Here at McMaster his gift catalysed the renovation of Hamilton Hall into the James Stewart Centre for Mathematics. We also benefitted from his insistence on architecture of the highest calibre: thanks to Jim’s good taste the renovation by architects KPMB, has won numerous prizes, including the Governor General’s Gold Medal and the American Institute of Architects Honor Award. We were lucky to have such a multi-talented and generous colleague.