Math!: Encounters with High School Students contains a collection of well-known mathematician Serge Lang’s dialogues with students. With his lively style, Serge Lang treats the students as his own and shows them something of the essence of mathematical thinking. The encounters between Lang and the students were taped and, therefore, authentic and lively. The book introduces a fresh and novel approach to teaching, learning, and enjoying mathematics. The book is of great interest to teachers and schools.