In explanation of why I don't do one-on-one advisement (explained more at a link at the bottom), I wrote this:
The benefits of group discussion can be larger than anything else in the world. Unschoolers have known it for years, but a new book called "Smarter than You Think" describes the process, too. There are people whose lives have been transformed because they wanted good relationships with their children and they took small, simple steps to get there.
Those three pages are an impressive collection of the powerful difference a deep understanding of unschooling, and its practice in a home, can make to parents as individuals.