Drawing on unpublished documents and oral histories, an illustrated examination of an iconic artwork of an artist who has made a lifework of tactical evasion.One wintry day in 1983, alongside other street sellers in the East Village, David Hammons peddled snowballs of various sizes. He had neatly laid them out in graduated rows and spent the day acting as obliging salesman. He called the evanescent and unannounced street actionBliz-aard Ball Sale, thus inscribing it into a body of work that, fro...