John Caldwell Holt (April 14, 1923 – September 14, 1985) was an American author and educator, a proponent of homeschooling (specifically the unschooling approach), and a pioneer in youth rights theory. After a six-year stint teaching elementary school in the 1950s, Holt wrote the book How Children Fail (1964), which cataloged the problems he saw with the American school system. He followed it up with How Children Learn (1967). Both books were popular, and they started Holt's career as a consultant to American schools. By the 1970s he decided he would try reforming the school system and began to advocate homeschooling and, later, the form of homeschooling known as unschooling. He wrote a total of 11 books on the subject of schooling as well as starting the newsletter Growing Without Schooling (GWS). Source: Wikipedia (en)