My Mother Wears Combat Boots takes up the topic of radical parenting. The book is not just for parents, but also people considering parenthood and those who do not intend to have children, offering non-parents insight as supportive allies to children and parents. Mills discusses many pragmatic aspects of parenting a free child, including pregnancy, birthing, discipline, schooling, gender coding, touring with children, and organizing childcare for Free Trade Agreement of the Americas (FTAA) protests.