Arnel R. Hallauer has dedicated his life to breeding; therefore, it is appropriate that this issue of Plant Breeding Reviews be dedicated to him. Dr. Hallauer's primary contributions have been in understanding quantitative inheritance in maize, developing breeding methodology, evaluating and utilizing recurrent selection for population improvement, and developing inbred lines for use in maize hybrids. Dr. Hallauer has also been very involved in graduate student education. The success of is students in academia and industry is a measure of his ability as a graduate educator and represents one of his greatest contributions to plant breeding. He has also been extensively involved in international activities and is known throughout the world for the impact of is efforts in that arena. Sprague and Lamkey (1992) have reviewed Dr. Hallauer's career in the context of the development of quantitative genetics and his research career will be emphasized here.