Aromatherapy is among the simplest of all complementary therapies to integrate because when we inhale air, we inhale aroma, although we are usually unaware of it. However, aromatherapy is not always presented in a manner that is scientifically digestible, and as a result it has been difficult for physicians and nurses to take the field seriously or to understand how to use it in practice. Here is a book from a health professional (a nurse) who writes about aromatherapy in a way that is approachable for all health professionals, including Western medical specialists. Section 1 discusses the nature of aromatherapy; plant taxonomy, chemistry, extraction, biosynthesis, and analysis; toxicity and contraindications; psychology; and use in nursing practice, manual therapies, and internally. Section 2 introduces clinical use according to specialization, i.e., infection, stress, cardiology, dermatology, oncology, etc. Numerous appendices provide useful background and resources.