Non-Evangelical Books That Evangelicals Should Read

So says my pastor:

Cone, James, For My People (Maryknoll, NY: Orbis Books, 1984).
__________, A Black Theology of Liberation (Maryknoll, NY: Orbis Books, 1984).
__________, My Soul Looks Back (Maryknoll, NY: Orbis Books, 1995).
Freire, Paulo, Pedagogy of the Oppressed, trans. Myra Bergman Ramos (New York: Continuum Press, 1989).
__________, Pedagogy of the City, trans. Donaldo Macedo (New York: Continuum, 1993).
Gutierrez, Gustavo, A Theology of Liberation, 15th anniversary edition (Maryknoll, NY: Orbis Books, 1988).
Massey, Douglas S. and Nancy A. Denton, American Apartheid (Cambridge, MA: Harvard University Press, 1993).
Míguez-Bonino, José, Doing Theology in a Revolutionay Situation (Philadelphia: Fortress, 1975).
Ryan, William, Blaming the Victim (New York: Vintage Books, 1976).
Takaki, Ronald, A Different Mirror (Boston: Little, Brown & Co., 1993)
Takaki, Ronald, ed., From Different Shores (New York: Oxford University Press, 1987).
West, Cornel, Race Matters (New York: Vintage Books, 1994).
Wilson, William Julius, The Declining Significance of Race (Chicago: University of Chicago Press, 1980).
__________, The Truly Disadvantaged (Chicago: University of Chicago Press, 1987).

Here is a bio of him from that same article:

Manuel Ortiz is Professor of Ministry and Urban Mission at Westminster Theological Seminary in Philadelphia. A church-planter with wide experience, he currently combines his academic position with pastoring a church in an urban area of Philadelphia. Professor Ortiz has a passionate concern for bringing the gospel to the poor and the marginalised, as reflected in his ministry and in his writings. He is author of The Hispanic Challenge: Opportunities Confronting the Church, One New People: Models for Developing a Multiethnic Church and (with Harvie Conn) Urban Ministry (all with IVP) and a festschrift for Harvie Conn, The Urban Face of Mission: Ministering the Gospel in a Diverse and Changing World (edited with Susan Baker, Presbyterian and Reformed).