Since Life magazine equipped him with a camera at the age of 17 to cover the Guatemalan Civil War in 1954, Dirck Halstead has been at the frontlines of American photojournalism. After a 15-year stint with UPI during which he covered the Vietnam War, he was Time magazine's White House photographer for nearly three decades, from Richard Nixon to Bill Clinton's first term and he spearheaded what has become known as the Platypus Movement, which encourages still photographers to explore video journalism and bridges the gap between print and television. Moments in Time includes the most powerful photographs of Halstead's fifty-year career, during which he has contributed more cover images to Time than any other photographer.