The hemp seven-leaf plant on T-shirts, posters and magazine covers has long been a symbol of teenage freethinking. The legalization of “weed smoking” or the tightening of the fight against it has become a PR argument for politicians, writers and movie stars. Meanwhile, no one has ever offered our society a large professional dossier on hemp. It is used to make ropes, oil, medicine, food and clothing. Who and how did she help or hinder in life? Who dreams of “hemp supermarkets” and which varieties grow in which countries? Chemical exposure? Industrial application? Role in world culture? The encyclopedia will tell you everything you have long wanted to know about this most discredited and scandalous plant of our days.