Kate first put the list of Issues/Conditions together for her own use when a client came for an aromatherapy massage. All the aromatherapy books she found listed the essential oils in alphabetical order with problems they addressed under them. However a client never came to her with a list of essential oils to use, but with difficulties they wanted the oils to address. This book is, to the best of her knowledge, unique with this list and would be especially useful for other massage therapists or for people who want to address a problem using essential oils without searching an entire book.