The document discusses perfumes and their composition. Perfume is a fragrant mixture of essential oils, fixatives, and solvents used to provide a pleasant scent. It summarizes the history of perfumes and the traditional classification of perfumes into categories like floral, woody, citrus, and others. The key components of perfume are described as essential oils, fixatives, and solvents. The manufacturing process involves collection of aromatic sources, extraction of oils, blending, and aging. Top, middle, and base notes create the harmonious scent of a perfume. Certain ingredients in fragrances can cause allergic reactions.