Parenting a Free Child
I've read a few unschooling books the last few months, but Rue Kream's Parenting a Free Child has taken the cake as my absolute favorite. It's a Q&A format, and very well articulated. I slapped my forehead with almost every sensical answer she gave. If you're only going to read one book on unschooling, or just want to know what unschooling is all about, read this one first. And here're some more.