The olfactory pyramid is the foundation upon which modern perfumery is built. It organizes a fragrance into three distinct layers: top notes, heart (or middle) notes, and base notes. These layers determine not only how a perfume smells but also how it unfolds over time, from the moment you spray it to the lingering scent that clings to your skin hours later. Understanding this pyramid can help you become a more informed fragrance buyer, develop a deeper appreciation for perfume artistry, and ultimately find a scent that aligns with your personality and preferences.