Totally disappointing! The history parts are hard to believe, and the perfume-making parts are, ummmm, weird.
To give you a feel, she believes God (which one is unclear) gave her perfume making techniques that involve numerology, homeopathy, astrology, talking and transferring happy thoughts to her perfume brews, and probably other New Age techniques that I missed.
If you want to learn more about scents, their history and making them, get both _An Album of Fragrance_ and the top-notch _Perfumes, Splashes & Colognes_ for less than the cost of this book.