Dr. Herng-Der Chiou is a retired engineer and an elder in the Evangelical Formosan Christian Church in Phoenix. A writer of four books in Chinese about science and Christianity, he earned his Ph.D. in material science and engineering from Northwestern University (1979). Before he worked as a research scientist at the Monsanto Company in Missouri and the Motorola Company in Phoenix, he was a professor at Tatung University (Taipei). As the CTO of Wafer Works Company, Taiwan (known as the Helitek Company in California), he headed the R&D operations. He now lives in Chandler, Arizona, with his wife, FanMei (Lin).