Peter Gray books

Free to Learn: Why Unleashing the Instinct to Play Will Make Our Children Happier, More Self-Reliant, and Better Students for Life (2013)

A good enough book on the topic as an introduction to the ideas. I feel he skipped over a lot in the effort to "prove" his view points, one big one being his assertion that the Sudbury-model school would work for anyone. I would need to see more information on the types of families represented in...