Book excerpt: This book contains 50 years of photography by the author, a National Geographic photographer. He was a pioneer of color photography with a style that called for entering people's homes and hearts; by winning their confidence he was able to capture "off guard" moments, and reveal the depth of human nature. His work reveals beauty, mystery, and a sense of adventure. Part photography retrospective and part personal memoir, this book paints a full picture of the life of a globe-trekking photographer over the past half century.