I obtained this here. There were many sticky notes from the previous owner, which I found very helpful. Since there are sticky notes and such, I've marked it as having some scratches and stains. 〇 This is a comprehensive guidebook on doTERRA aroma oils, detailing their use in the home. 〇 I used to read this often, so there are sticky notes and markings. If you don't need the sticky notes, I can remove them before sending, so please feel free to let me know. 〇 Details - Title: Essential Oil Home Medicine Encyclopedia - Author: Roger M. Rutz, Etsuko Kobira Rutz - ISBN: 978-4-910139-00-5