Does anyone have good resources on the Black Panthers' free breakfast program?

For background, I'm a member of a socialist group focused on meeting people's material needs as far as food, pending revolution. We also intend to engage in the mass line methodology by engaging with the people we serve and providing political education. We are excelling at the first part of our misson, feeding people, but for awhile we have been trying to improve on the second part, the engagement, agitation and political education. So I had the idea of consulting the history of how the black panthers ran their free breakfast program, because I have heard that they also did some heavy propaganda and political education at the same time as feeding the kids.

TLDR links to any texts or videos that go in depth on how the black panthers ran their free breakfast program would be very appreciated! Thanks comrades :)