Edition: 7th edition; Nice book. Cover edges have light wear. Additional Details ------------------------------ Product description: Pages: 486 (Color) Chapters: 7 (not including directories or appendices) Published: 2018 We listened and took member feedback to heart! The 7th Edition has a brand-new index for quick and easy navigation. We’ve divided the “Essential Oils Pocket Reference” 7th Edition into eight main sections—7 chapters and 1 appendix section (3 appendices)—for clarity and user-friendliness.