Books For Kids:

Elephant and Piggie series by Mo Willems

Charlie and Lola series by Lauren Child

What to Do When You Worry Too Much by Dawn Huebner

My Mixed Emotions by Maureen Healy

Anh's Anger by Christiane Kromer and Gail Silver

Barbara Throws a Wobbler by Nadia Shireen

Bubble Gum Brain by Julia Cook

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Video For Kids:

Daniel Tiger (can be found on PBS Kids)
Books for Parents:

School of Hard Talks by Emily Kline

Building Boys by Jennifer L.W. Fink

The Resilience Recipe: A Parents' Guide to Raising Fearless Kids in the Age of Anxiety (2021) by Kahana, Kendall et al.

How to Talk So Kids Will Listen and Listen So Your Kids Will Talk by Adele Faber and Elaine Mazlish

The Happiest Toddler on the Block by Dr. Harvey Karp

Mindsight by Daniel Siegel

The Body Keeps the Score by Bessel van der Kolk

The Power of Regret by Daniel H. Pink

Article:

When Life Gives You Lemons, Call a 5th Grader