My always-unschooled son Jason (now 28) and I have co-edited The Unschooling Unmanual: http://www.naturalchild.org/unmanual/ . The book features articles and stories by Nanda Van Gestel, Jan Hunt, Daniel Quinn, Rue Kream, Kim Houssenloge, Earl Stevens, and Mary Van Doren.
This is a great book. I really loved it. It is a great book to share with a partner that is not tottaly on board with unschooling because of mainstream concerns.
IT is part of my Unschooling library and I highly recomend it as a must read.