In this interview with colleague Judy Yung, Him Mark Lai discusses at length the driving forces behind his passion for researching Chinese American history——his working-class background, progressive politics, training as a mechanical engineer, bilingual skills, and strong ethnic identity. Internationally recognized as the foremost authority on Chinese American history, Lai describes in detail his development as a pragmatic historian while researching and writing about such new topics as Angel Island poems, Pearl River Delta, Chinese American newspapers, regional groups, and Left movements.