have you checked out the SF Freedom School library? Your question needs to be more specific for me to have an opinion. best for whom? what age group? to teach exactly what about Southern Freedom movement? For example, I really like IN STRUGGLE by Clayborne Carson because it seems like a really good history of SNCC -- but it is highly academic, and doesn't really address why the transition from civil right to black power. for that, I am reading BLACK POWER by Ogbar. and so on.