The XXIV International Conference on Phenomena in Ionized Gases is a subsequent conference in the series of meetings being organized biennially with participation of 400-500 attendees, the last having been held in Toulouse, France, in 1997. The ICPIG is the only international conference comprising a full range of low-temperature plasma which, produced by various methods, has some common physical properties. For a long time such a plasma has found very broad applications (e.g., in lighting engineering, processing of metals, plasma engines, etc.) which are still being improved thanks to investigations. New sensational possibilities of employment of such a plasma are still emerging (e.g., plasma sources of ions, electrons, and X-rays used in material technology, equipment applied in environment protection, plasma displays, etc.). The scientific program of the ICPIG conferences, selection of the invited lectures and guidance for the Local Organizing Committee (LOC) are the responsibility of the International Scientific Committee (ISC). The ICPIG conferences are an important forum for promotion of investigations and applications of plasma in developing countries. The ICPIG has traditionally been the principal forum for scientific exchange between researchers in plasma physics and technology in Eastern and Western European countries. The XXIVth International Conference on Phenomena in Ionized Gases was held in Warsaw centre at the campus of the Warsaw University, from 11th to 16th July 1999. The local arrangements for the conference were made by the LOC in cooperation with the Institute of Plasma Physics and Laser Microfusion (IPPLM) in Warsaw.