Discover the Principles of Pure Play


US Play Coalition

The US Play Coalition is a partnership to promote the value of play throughout life. We are an international network of individuals and organizations that recognize play as a valuable and necessary part of a healthy and productive life. Our membership is diverse – including educators, parents, physicians, health scientists, park and recreation professionals, psychologists, landscape architects and many more. Membership is free, and simply requires a declaration of shared commitment to the value of play.

OPAL – Outdoor Play And Learning

OPAL is a UK- based CIC (Community Interest Company) dedicated to improving quality of primary school play periods in order to improve learning, engagement, health, creativity, andself-esteem.


Here is a collection of books focused on our mission of play. 

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Playful Classroom
Playful Life
Body Keeps the Score
Let the Children Play