The journal is devoted to all aspects of the mobility, reaction chemistry, and behavior of ions in a supporting gaseous atmosphere and in an electrical field. Articles span a broad range of research and arenas, e.g. laboratory studies of biomolecules at comparatively low pressure, instrumentation for field and process monitoring, and measurements of samples with relevance to industry, the environment, medicine, and security. The published papers cover theoretical and experimental findings from fundamental and applied studies including topics on chemistry, physics, geology, life sciences, and engineering associated with the measurement of ion mobility. In addition, papers and technical notes on novel instrument design, related new applications, and their validation are welcome. The journal is the official publication of the International Society of Ion Mobility Spectrometry. It is fully peer reviewed and publishes research and application-oriented papers, critical reviews, technical notes, and topical issues on special occasions.