Gavin Pretor-Pinney is a renowned journalist and cofounder of The Idler magazine in England. A former science nerd and a graduate of Oxford University, he has been obsessed with clouds since childhood. His writing has appeared in The Telegraph, Evening Standard, and elsewhere. Based in London and Somerset, Gavin is the founder and chair of The Cloud Appreciation Society. Visit their website at www.cloudappreciationsociety.org.