Zainalabedin Navabi, Ph.D., is professor of electrical and computer engineering at Northeastern University. Dr. Navabi is the author of several textbooks and computer based trainings on VHDL, Verilog and related tools and environments. Dr. Navabi's involvement with hardware description languages began in 1976 when he started the development of a register-transfer level simulator for one of the very first Hardware Description Languages (HDLs). In 1981 he completed the development of a synthesis tool that generated MOS layout from an RTL description. Since 1981, Dr. Navabi has been involved in the design, definition and implementation of HDLs. He has written numerous papers on the application of HDLs in simulation, synthesis and test of digital systems. He started one of the first full HDL courses at Northeastern University in 1990. Since then he has conducted many short courses and tutorials on this subject in the United States and abroad. In addition to being a professor, he is also a consultant to Electronic Design Automation (EDA) companies. Dr. Navabi received his M.S. and Ph.D. from the University of Arizona in 1978 and 1981, and his B.S. from the University of Texas at Austin in 1975. He is a senior member of IEEE, and a member of IEEE Computer Society, ASEE, and ACM. Dr. Navabi is the author of six books on various aspects of digital system design automation.