One of the first popular science books, the intent of The Botanic Garden is to pique readers' interest in science while educating them at the same time. By embracing Linnaeus's sexualized language, which anthropomorphizes plants, Darwin makes botany interesting and relevant to his readers, but his reliance on conventional images of women when describing plants and flowers reinforces traditional gender stereotypes. Darwin emphasizes the connections between humanity and plants, arguing that they are all part of the same natural world and that sexual reproduction is at the heart of evolution (ideas that his grandson, Charles Darwin, would later turn into a full-fledged theory of evolution). This evolutionary theme continues in The Economy of Vegetation which contends that scientific progress is part of evolution and urges its readers to celebrate inventors and scientific discoveries in a language usually reserved for heroes or artistic geniuses.