Critical Thinking and Science

The True Believer by Eric Hoffer

The Blind Watchmaker by Richard Dawkins

Reality Isn't What it Used to Be by Walter Truett Anderson

Evolution Isn't What it Used to Be by Walter Truett Anderson

The Demon-Haunted World: Science as a Candle in the Dark
by Carl Sagan

A Nation of Victims: The Decay of the American Character
by Charles J. Sykes

How We Know What Isn't So: The Fallibility of Human Reason in Everyday Life by Thomas Gilovich

In Defense of Elitism by William A. Henry III

Six Thinking Hats by Edward de Bono

The Sixth Extinction: Patterns of Life and the Future of Humankind
by Richard Leakey, Roger Lewin

Relationships

Conscious Loving: The Journey to Co-Commitment
by Gay & Kathlyn Hendricks

Getting The Love You Want by Harville Hendrix

The Polyfidelity Primer by Ryam Nearing

Love Without Limits by Deborah Anapol

Divorce Busting by Michele Weiner-Davis

Tantra: The Art of Conscious Loving by Charles and Caroline Muir

Dreaming and Creativity

Mind Games: The Guide to Inner Space
by Robert Masters & Jean Houston

Writers Dreaming edited by Naomi Epel

The Artist's Way: A Spiritual Path to Higher Creativity
by Julia Cameron

Where People Fly and Water Runs Uphill by Jeremy Taylor

Bird by Bird: Some Instructions on Writing and Life by Anne Lamott

Fearless Creating by Eric Maisel

Deep Writing by Eric Maisel

Writing in Flow by Susan K. Perry

Psychology

Trances People Live by Stephen Wolinsky, Ph.D.

For Your Own Good by Alice Miller

The Denial of Death by Ernest Becker

We've Had a Hundred Years of Psychotherapy and the World's Getting Worse by James Hillman & Michael Ventura

Emotional Intelligence by Daniel Goleman

Learned Optimism: How to Change Your Mind and Your Life
by Martin E. P. Seligman, Ph.D.

Anger: The Misunderstood Emotion by Carol Tavris

Meeting the Shadow: The Hidden Power of the Dark Side of Human Nature edited by Connie Zweig and Jeremiah Abrams

Against Therapy by Jeffrey Moussaieff Masson

Under the Influence: The Destructive Effects of Group Dynamics
by John D. Goldhammer

Searching for Memory: The Brain, The Mind, and the Past
by Daniel L. Schacter

Shadow Syndromes: The Mild Forms Of Major Mental Disorders That Sabotage Us
by J. Ratey. M.D. & C. Johnson

Sexuality

Sex for One: The Joy of Selfloving by Betty Dodson

Gay, Straight, and In-Between by John Money

Animal Behavior

When Elephants Weep by Jeffrey Moussaieff Masson

Dogs Never Lie About Love by Jeffrey Moussaieff Masson

A Dog is Listening by Roger A. Caras (and any of his other books)

Coming of Age with Elephants: A Memoir by Joyce Poole

Spirituality

The Spirit of Shamanism by Roger N. Walsh, M.D., Ph.D.

Spiritual Emergency: When Personal Transformation Becomes a Crisis
edited by Stanislav & Christina Grof

How Then, Shall We Live? Four Simple Questions by Wayne Muller

The Spirituality of Imperfection by Ernest Kurtz & Katherine Ketcham

The Miracle of Mindfulness by Thich Nhat Hanh

A Path with Heart: A Guide Through the Perils and Promises of Spiritual Life
by Jack Kornfield