The author has been teaching undergraduate and graduate level thermodynamics courses for over 30 years. Since 1989 he has been a professor at the Middle East Technical University (METU), Ankara, Turkey. He has also taught at the Turkish Military Academy and the University of Akron, Ohio. Professor Tosun received his BS and MS degrees from METU, and a PhD degree from the University of Akron, all in chemical engineering. He is the author of the book Modeling in Transport Phenomena, 2nd Ed., published by Elsevier. His research interests include mathematical modeling and transport phenomena. He is the author or co-author of over sixty publications.