The focus of Gordon Research Conference on Plasma Processing Science (GRC-PPS) is on both the fundamental science and advanced technologies of plasmas particularly in the context of processes where materials are modified or fabricated. The 2006 conference will be held 16-21 July 2006 at the Mount Holyoke College, Massachusetts. It will bring together the leading authorities in the field, as well as beginning researchers, to exchange information and ideas concerning the most recent advances and future directions in plasma processing science. The topics covered include plasma in biology and medicine, microplasmas, plasma in hydrogen production, fuel cells and materials treatment, plasma in nano- and micro- technologies, aerodynamics and plasma aided combustion. The GRC-PPS sees as its charter not only to be a forum for the advancement of the state of the art in plasma processing science, but also to be a tutorial environment for those new to the field. This tutorial experience is obtained through the formal lectures and lively discussions at the poster sessions, and by the opportunities the students have to interact with the leaders in the field during the informal discussion times.