Books Green A Field Guide to Marijuana by Dan Michaels and Erik Christiansen Hardcover, 395 pages, Chronicle Books Llc, List Price: $30 | purchase close overlay Buy Featured Book TitleGreenSubtitleA Field Guide to MarijuanaAuthorDan Michaels and Erik Christiansen Your purchase helps support NPR programming. How? Amazon Independent Booksellers Genres: Nonfiction History & Society Facebook Twitter Google+ Email NPR stories about Green Grand Daddy Purple, Skunk #1, Sugar Daddy Courtesy of Chronicle Books hide caption toggle caption Courtesy of Chronicle Books Shots - Health News Looks Good Enough To Smoke: Marijuana Gets Its Glamour Moment May 20, 2015 Aficionados of fine weed describe the effects as if they're talking about vintage wine. But how to know which medicinal or recreational strain to choose? This field guide cuts through the haze.