James R. Gillespie, the original author of this text, had extensive training and experience in the field of livestock production and agricultural education. He received his BS and MS degrees in Agricultural Education from Iowa State University and his Education Specialist degree in School Administration from Western Illinois University in Macomb, Illinois. Mr. Gillespie taught agricultural education at the high school and adult education levels. In addition to other agriculture-related positions, he was self-employed in farming and employed by the Illinois State Board of Education, Department of Adult, Vocational, and Technical Education, Program Approval and Evaluation as Regional Vocational Administrator, Region II. Mr. Gillespie was a member of Phi Delta Kappa and the Honor Society of Phi Kappa Phi. James R. Gillespie passed away in 2006.