He holds a Ph.D. in chemical/aerospace engineering and mechanics from Rensselaer Polytechnic Institute and two Master's of Education degrees from Xavier University and California State University. After spending twenty-five successful years as an aerospace engineer, in 2000 he embarked on a second career in teaching. He is active in Grace Korean Church in Fullerton, CA. He is an elder in the church and enjoys playing golf with a handicap of 5. This is his second book, following the first book, "An American Story," his autobiography published by Dorrance Publishing Company in June, 2010. Publish Date February 12, 2013