This is not a book you read in one sitting, but rather a manual, a handbook, that you go back to when you need some information regarding essential oils (EOs). If you find yourself getting interested in EOs, before you go and embark on shopping spree of different oils with different scents and qualities, I encourage you deeply to acquire this guide. On the one hand, EOs can add wonderful scents to your home (when used with a diffuser for example) or your DIY natural products, and some can even add some physical and aromatherapy effects (such as pain killing, calming, sleep inducing. etc.). On the other hand, when used incorrectly they can be seriously toxic and harm you, your family, friends and/or your pets. Before purchasing an EO, take a minute and consult the guide regarding safety considerations with this specific EO. Some EOs are not safe for kids or pregnant women, some are toxic to animals, some are only safe in rinse-off products and so on. Because EOs are so powerful they need to be used with wisdom.