The Four Agreements by Don Miguel Ruiz
http://www.miguelruiz.com
A New Earth: Awakening to Your Life's Purpose
http://www.eckharttolle.com
The Power of Now by Eckhart Tolle
http://www.eckharttolle.com
Opening Doors Within:365 Daily Meditations from Findhorn by Eileen Caddy
http://www.eileen-caddy.net
The Would-Be Medium: My Ten-Year Journey as a Workshop Junkie by Rena Huisman
https://renahuisman.com