"Teacher Man" is a memoir by Frank McCourt, an Irish-American teacher and author. The book recounts his experiences as a high school teacher in New York City, focusing on his unconventional teaching methods and the challenges he faced in the classroom. McCourt shares stories that highlight the struggles and triumphs of both his students and himself. The memoir is part of a trilogy that includes Angela's Ashes and ‘Tis, which also explore McCourt's life and experiences. "Teacher Man" emphasizes the importance of storytelling in education and reflects on the impact teachers can have on their students' lives.