Arnold Genthe, a German tutor who arrived in San Francisco in 1895, became captivated by the vibrant Chinatown, known as "Tangrenbu." His fascination led him to photograph over 200 images that document the rich street life before the 1906 earthquake and fire. This book showcases these enduring photographs, presenting a glimpse into Chinatown’s bustling streets, shops, and inhabitants like street vendors, gamblers, and peddlers. Historian John Tchen's text accompanies the images, exploring the history of Chinese-Americans in California and dispelling myths about Chinatown, while underscoring Genthe's role in preserving this lost world.