Free to Learn by Peter Gray. Psychologist and Self-Directed Education advocate Peter Gray synthesizes research on our hunter-gatherer ancestors, children’s play, and Sudbury Valley School to show that children are hard-wired to educate themselves through play and exploration, and that these instincts are still capable of successfully educating children in the 21st century.
How Children Fail and How Children Learn by John Holt. In the first book, teacher John Holt tells the story of how conventional teaching methods are consistently failing to reach his students. In the second book, he recounts dozens of tales of children he has observed successfully learning outside of school and without teachers.