In The Botany of Desire, Pollan explores the concept of co-evolution, specifically of humankind's evolutionary relationship with four plants — apples, tulips, marijuana, and potatoes — from the dual perspectives of humans and the plants. He uses case examples that fit the archetype of four basic human desires, demonstrating how each of these botanical species are selectively grown, bred, and genetically engineered. The apple reflects the desire for sweetness, the tulip beauty, marijuana intoxication, and the potato control. Pollan then unravels the narrative of his own experience with each of the plants, which he then intertwines with a well-researched exploration into their social history. Each section presents a unique element of human domestication, or the "human bumblebee" as Pollan calls it. These range from the true story of Johnny Appleseed to Pollan's first-hand research with sophisticated marijuana hybrids in Amsterdam, to the alarming and paradigm-shifting possibilities of genetically engineered potatoes.

Michael Pollan (born February 6, 1955) is an American author, journalist, activist, and professor of journalism at the University of California, Berkeley.