This directory contains documentation pertaining to the Air Traffic Control corpus. The following documentation files/directories have been provided: atc.doc: Summary abstract describing the data collection process. glossary.doc: Pilot/Controller glossary created to promote a common understanding of the terms used in the Air Traffic Control system. images: Directory containing images of the eight figures referred to in "atc.doc" file. Both PostScript and Tiff format files are provided for each figure image.