Joseph Allen Stein was an American architect who worked in India for over 50 years. Some key works include the Indian Habitat Centre in New Delhi, which features a continuous roof space frame and balances blue, green, and red colors. At the American International School, he used folded steel lattice vaulting at the classrooms. For Escorts Limited, he employed different shell configurations like barrel vaults and hyperbolic domes. Throughout his career, Stein aimed for an appropriate modern regionalism that considered the local environment, materials, and human scale.