Natural light portraiture is hugely popular. The light source is free, malleable, and available anywhere. Mastering its use requires a specific skill set, however. Fortunately, Tony Corbell is up to the task of showing readers how to harness its full power. He sets a foundation for mastering this powerful source, beginning with a discussion on how to set camera controls to ensure the right amount of light is allowed to strike the image sensor to create the portrait and how to read a histogram to ensure that a subject-appropriate (versus so-called “correct”) exposure results.