This book explains how to recognize good and hazardous flying weather by looking at the causes and effects of atmospheric phenomena. These include air masses, high and low pressure areas, cloud formations, fronts, thermals, inversions and anti-cyclones. For those preparing for the Bronze C award or for one of the Private Pilot's Licence examinations there is a useful appendix with revision questions and answers. Derek Piggott is the author of a number of well-known books on gliding and is a gliding expert.