Affluent potheads will happily leaf through Green, a handsomely produced coffee-table book whose author, Dan Michaels, is described as a “strategist for the emerging legal marijuana industry” with “experience and connoisseurship in cannabis culture.” One hundred and seventy strains of grass are described in terms familiar to oenophiles. “Blue Kush is a tasty combination of blueberry and lavender sweetness contrasted with subtle sour and spice undertones,” Michaels writes. In the eye-catching photography of Erik Christiansen, samples of those strains appear as curious abstractions created by “color correction techniques” that presumably bring the buds to life in the cannabis equivalent of Technicolor.