This is the reference guide we've trusted for years in our family. It has helpful sections to teach how essential oils are made, usage and applications, which oils might be most helpful for particular woes, and in-depth details on the different plants available to us.
This reference guide is available in app form, but if you're like us, you love a good book to reference.
This particular version is paperback, 700 pages and very comprehensive.
We've found that it can be really helpful to chat about particular questions that may arise, please reach out to us if you have any!