For this week’s Online History Adventure we are pleased to present Jim Schein, author of the recently published book Gold Mountain, Big City. The book provides an opportunity to experience the history of Chinatown through a new, immersive lens. This colorful and playful time capsule of San Francisco’s Chinatown illuminates the unique businesses, culture, and people encountered by illustrator Ken Cathcart between 1939 and 1955. Each quadrant of Cathcart’s map, which doubles as a guide for explorers of the book, is supplemented with never-before-seen black-and-white photographs. Gold Mountain, Big City leads readers into a world of curious characters, revealing a glimpse of the immigration story so universal to America in both its celebratory aspects and its darkness. We hope you enjoy the journey.