Core Herbalism

• Stephen Harrod Buhner – The Lost Language of Plants; The Secret Teachings of Plants; Sacred Plant Medicine; Plant Intelligence and the Imaginal Realm
• Matthew Wood – The Book of Herbal Wisdom; The Earthwise Herbal (Vol. 1–2)
• David Hoffman – Medical Herbalism
• Juliette de Bairacli Levy – Herbal Handbook; Common Herbs for Natural Health
• Nikki Darrell – Humoral Herbalism

Plant Spirit & Energetic Herbalism

• Nikki Darrell – Conversations with Plants
• Eliot Cowan – Plant Spirit Medicine
• Emma Farrell – Journeys with Plant Spirits
• Pam Montgomery – Plant Spirit Healing; Partner Earth
• Fay Johnstone – Plants That Speak, Souls That Sing

Astro–Herbalism & Cosmology

• Adriana Ayales – Herbal Astrology
• Sheri Hupfer – Astrological Herbalism
• Alice Sparkly Kat – Postcolonial Astrology
• Nicholas Culpeper – Complete Herbal

Botany, Chemistry & Herbal Science

• Lisa Ganora – Herbal Constituents
• Thomas J. Elpel – Botany in a Day
• Waugh & Grant – Anatomy & Physiology in Health & Illness
• Underwood – Pathology
• Pippa Waller – Holistic Anatomy

Plant Consciousness, Ecology & Sacred Nature

• Peter Tompkins & Christopher Bird – The Secret Life of Plants
• Robin Wall Kimmerer – Braiding Sweetgrass
• David George Haskell – The Songs of Trees
• Suzanne Simard – Finding the Mother Tree

Myth, Symbol, Story & Spirit

• Clarissa Pinkola Estés – Women Who Run With the Wolves
• Martin Shaw – A Branch from the Lightning Tree
• Joseph Campbell – The Hero With a Thousand Faces