Sadiq M. Sait obtained a Bachelor's degree in Electronics from Bangalore University, India, in 1981, and master's and Ph.D. degrees in Electrical Engineering from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, in 1983 and 1987, respectively. He is currently a professor in the Department of Computer Engineering of KFUPM. Sait has authored over 85 research papers in international journals and conferences. He is coauthor of the book VLSI Physical Design Automation: Theory and Practice, published in January 1995. He has also contributed two chapters to a book entitled Progress in VLSI design. He served on the editorial board of International Journal of Computer--Aided Design between 1988 and 1990. Currently he is the editor of Arabian Journal for Science and Engineering for Computer Science & Engineering. His current areas of interest are in digital design automation, VLSI system design, high--level synthesis, and iterative algorithms. Habib Youssef received a Diplome d'Ingenieur en Informatique from the Faculte des Sciences de Tunis in 1982 and a Ph.D. in Computer Science from the University of Minnesota in 1990. He is currently and Associate Professor of Computer Engineering at King Fahd University of Petroleum and Minerals, Saudi Arabia. Youssef has authored more than 45 journal and conference papers. He is the coauthor of the book VLSI Physical Design Automation: Theory and Practice, January 1995. His main research interests are CAD of VLSI, computer networks, and performance evaluation of computer systems, and general stochastic and evolutionary algorithms.