Dr. Essam Hammam is currently an adjunct faculty at the department of Chemistry and Biochemistry at the University of North Carolina Wilmington, USA. He worked as Professor in Department of Chemistry, Center of Excellence in Enviromental Studies at King Abdulaziz University, Jeddah, KSA. He received his Ph.D. in Electrochemistry in 1990 through a joint program between Tanta University in Egypt and the institute for Physical and Theoretical Chemistry at Bonn University in Germany, under the main supervision of Professor Wolf Vielstich. He has been a Harvard University associate since 2003. He was affiliated with many educational institutions such as Boston University and Northeastern University in USA and the University of Southampton in UK. During his research endeavor, he has been interested in weak inter molecular interactions and how these interactions affect the spectroscopy, structure, and dynamics of molecules and clusters using molecular beam intracavity laser induced fluorescence and the symmetry adapted perturbation theory. Dr. Hammam's current research activities are focusing on the application of the ab-initio theoretical methods to understand the photophysical and photochemical properties of laser dyes.