This edition of Essential Oils: Pocket Reference (Seventh Edition) is in Used-Like New condition. The book contains no highlighting, all pages are intact. 2016 Essential Oils Pocket Reference Guide ( formally Essential Oils Quick Reference Guide) 7th EDITION ESSENTIAL OIL POCKET REFERENCE (EOPR) It’s time to celebrate! This publication round marks the beginning of a much more useful, more navigable index to guide you immediately to what you’re looking for. The 7th Edition of the Essential Oils Pocket Reference is your portable, compressed manual, including all Young Living essential oils offered at that time.