I recommend these to clients

MINDFULNESS

Books:
Bhante H. Gunaratana. Mindfulness in Plain English (Wisdom Publications)

Thich Nhat Hanh. The Miracle of Mindfulness: An Introduction to the Practice of Meditation (Beacon Press)

Audio/Video:
Dharmaseed.org – Website where you can download hundreds of talks by different meditation teachers, for a donation. Search by teacher. I recommend Jack Kornfield, Ruth Denison, Mark Nunberg, Michele McDonald, and Sylvia Boorstein.

Soundstrue.com – Recorded talks, podcasts, and an e-mail list that brings samples of free teachings every week to your in-box.

Sharon Salzberg & Joseph Goldstein. Insight Meditation: A Step-by-Step Course on How to Meditate. (Sounds True)

DEPRESSION

Books:
Mark Williams, John Teasdale, Zindel Segal. & Jon Kabat-Zinn. The Mindful Way Through Depression: Freeing Yourself from Chronic Unhappiness (The Guilford Press)

Mary Ellen Copeland. The Depression Workbook: A Guide for Living With Depression and Manic Depression (New Harbinger Publications)

Video:
Depression: Out of the Shadows (PBS Home Video)

ANXIETY

Books:
Margaret Wehrenberg. The 10 Best Anxiety Busters (W.W. Norton & Company).

Susan Orsillo and Lizabeth Roemer. The Mindful Way Through Anxiety: Break Free from Chronic Worry and Reclaim Your Life (The Guilford Press)

Mary Ellen Copeland. The Worry Control Workbook (New Harbinger Publications)

AGING

Lewis Richmond. Aging as a Spiritual Practice: A Contemplative Guide to Growing Older and Wiser (Penguin)

Andrew Weil. Healthy Aging: A Lifelong Guide to Your Well-Being (Random House)

Kathleen Dowling Singh. The Grace in Aging: Awaken as You Grow Older (Wisdom Publications)

GRIEF & LOSS

Books:
Therese Rando. How to Go on Living When Someone You Love Dies. (Bantam)

C.S. Lewis. A Grief Observed (Faber and Faber)

ANGER MANAGEMENT

Books:
Les Carter and Frank Minirth. The Anger Workbook: An Interactive Guide to Anger Management (Thomas Nelson)

Thich Nhat Hanh, Anger: Wisdom for Cooling the Flames (Riverhead Books)