Hi Beth
Apart from the great suggestions already listed, I recommend Byron Katie's Work. She wrote
Loving What Is: Four questions that can change your life and
I Need Your Love - Is That True? : How to Stop Seeking Love, Approval, and Appreciation and Start Finding Them Instead as well as other books that I haven't read. Some of them are audiobooks. You can check out some of the clips on her website.
The Official Site for The Work of Byron Katie
She had a spontaneous enlightenment experience like Eckhart Tolle and now gives workshops worldwide as well as doing volunteer work in prisons. A lot of people I know (including me) found doing her "Work" changed their life and relationships around. She's less abstract than Tolle and has a really simple method for helping us question our assumptions about people and situations.
Bhavya
