One of the greatest landscape painters of all time, Joseph Mallord William Turner rendered the subtle effects of light and atmosphere in revolutionary ways. A barber's son, he entered the Royal Academy art school at age fourteen and became, over the course of six decades, the leading British artist of his time. This overview of Turner's career and influences includes footage of locations important to him in Wales, England, and Switzerland, and readings from writers and artists of the era, including John Ruskin and Lord Byron. (30 mins., closed-captioned)