FOREWORD.

Introduces this issue as a special issue which is a collection of articles based on invited presentations at the 41st Annual Meeting of the Division of Plasma Physics (DPP) of the American Physical Society held in Seattle, Washington, in November 1999. Details of the program which involved several papers and a mini-conferences on Turbulence in the Interstellar Medium and Solar Wind, Plasma Propulsion Physics, Dusty Plasmas, and Computational Studies of Complexity in Turbulent Plasma; Coverage of a broad variety of research in plasma physics and highlighting of areas of intense interest and investigation, such as the basic physics of waves, instabilities, turbulence and transport and the properties of non-neutral plasmas and matter under very high pressures; Details of tutorial papers and presentations which are meant to be understood by non-experts.