For kids:
Take the Time: Mindfulness for Kids by Maude Roegiers (mindfulness)
Fly Free by Roseanne Thong (Karma)
Anh's Anger by Gail Silver (mindfulness)
Pickle Chiffon Pie by Jolly Roger Bradfield (compassion)
How to Behave and Why by Munro Leaf (mindfulness, responsibility)
14 Cows for America by Carmen Deedy (compassion, kindness, generosity)
Easy Work: An Old Tale by Eric Kimmel (empathy)
The Enemy: A Book About Peace by David Cali (compassion, peace)
Have You Filled a Bucket Today: A Guide to Daily Happiness for Kids by Carol McCloud (happiness, gratitude)
Pitching in for Eubie by Jerdine Nolen Harold (compassion, generosity)
All of Me! A Book of Thanks by Lezlie Evans (gratitude)
How Kind! by Mary Murphy (kindness, gratitude, paying it forward)
Thank You, World by Alice b. McGinty (gratitude)
The Circle of Days by Reeve Lindbergh (gratitude) Note: based on "Canticle of the Sun" by St Francis of Assisi so has a religious bent
Thank You For Me! by Marion Dane Bauer (gratitude)
One Lucky Girl by George Ella Lyon (gratitude, hope, community) Note: based on a true story
The Most Thankful Thing by Lisa McCourt (gratitude)
Hope is an Open Heart by Lauren Thompson (hope) Note: beautiful photographs
Giving Thanks by Jonathan London (gratitude) Note: it bugs me that the dad says he got this from his "indian friends" but otherwise a nice book.
How to Paint the Portrait of a Bird by Mordecai Gerstein & Jacques Prevert
The Boy From the Dragon Palace by Margaret Read MacDonald (gratitude)
Grateful: A Song of Giving Thanks by John Bucchino Note: Has a cd of the song
How Dalia Put a Big Yellow Comforter Inside a Tiny Blue Box And Other Wonders of the Tzedakah by Linda Heller (compassion, generosity, gratitude)
Four Feet Two Sandals by Karen Lynne Williams (sharing, giving, compassion)
A Child's Garden A Story of Hope by Michael Foreman (hope, unity, compassion)
Hannah's Way by Linda Glaser (compassion, community)
My Heart Will Not Sit Down by Mara Rockcliff (compassion, generosity)
Lady Hahn and her Seven Friends by Yumi Heo (cooperation - teamwork)
The House on Dirty Third Street by Jo Kissinger (community)
Ordinary Mary's Extraordinary Deed by Emily Pearson (paying it forward)
The Forgiveness Garden by Lauren Thompson
Marvelous Cornelius by Phil Bildner
For parents:
Raising Happiness: 10 Simple Steps for More Joyful Kids and Happier Parents by Christine Carter
Roots of Empathy: Changing the World Child by Child by Mary Gordon
The Blessing of a Skinned Knee: Using Jewish Teachings to Raise Self-Reliant Children by Wendy Mogel