With his combination of hard-edged logic and visionary hope, Michael Albert is one of the treasures of the Left. [Barbara Ehrenreich] How does a Marxist talk about gender? How does a feminist talk about class? Progressives use a variety of theories -- feminism, Marxism, environmentalism, multiculturalism -- as conceptual frameworks with which to understand the world and develop a vision for the future. How do social and political theories work, and how do they relate to each other?