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Take a deep breath of that recycled air in the office. Notice anything—say, the lack of deadly asbestos? Now, when you exhale, be sure to thank Tony Mazzocchi for his role in creating the Occupational Safety and Health Administration, the government agency that regulates workplace conditions. In The Man Who Hated Work and Loved Labor: The Life and Times of Tony Mazzocchi, author Les Leopold chronicles Mazzocchi’s life from his time served in World War II to—among other labor-related achievements—his leadership of the Oil, Chemical and Atomic Workers Union to his 2002 death. Leopold, a friend and associate of Mazzocchi, is no slouch in the labor field, either: He co-founded both the Labor Institute and the Public Health Institute and is currently working on an alliance between the Sierra Club and the United Steel Workers Union. Leopold discusses and signs copies of his work at 6:30 p.m. at Busboys and Poets, 2021 14th St. NW. Free. (202) 387-7638.