David Hume Kennerly On the iPhone is a series of essays, anecdotes, and tips about how and why he takes pictures. Using only the camera in his iPhone, Kennerly pursued an around the world photo-a-day mission in 2013. Along the way he discovered that paring down his formidable photo arsenal to a single, simple camera forced him to sharpen his eye and made him an even better photographer. The images and insights in this book will challenge and inspire any shooter, from amateurs to seasoned professionals.