Peter Smith has been writing about philosophy, logic, mathematics, and music in his personal blog Logic Matters since 2006 and continues to update it on a regular basis. Smith is a retired logic professor at the University of Cambridge and is the author of a number of textbooks and guides for students, including Philosophy of the Mind: An Introduction and An Introduction to Formal Logic. In Logic Matters, Smith blogs about book recommendations (on subjects such as philosophical logic and the philosophy of math), musical performances available on YouTube, and other online publications that may appeal to folks who share his interests. Visitors can explore previous blog posts by subject tags or by year.