Linda B. Hess is a lecturer in religious studies at Stanford University in Stanford, Calif. She is an expert in the poetry of 15th- and 16th-century Hindu saints and can discuss their continued influence.

Brad Pellish is the outreach pastor at Bethany Bible Church in Phoenix, Ariz., which performs outreach to local sex workers, including teenage prostitutes. Read an article about the church’s work.

Guy L. Beck is an adjunct professor at Tulane University in the Asian studies and religion studies departments. He is the author of Sonic Theology: Hinduism and Sacred Sound.

Chanchanit Martorell is executive director of Los Angeles’ Thai Community Development Center‘s Slavery Eradication and Rights Initiative. She advocates on behalf of Thai men, women and children trafficked to the U.S.

Mike Howerton is the lead pastor at Overlake Christian Church in Redmond, Wash., which has been involved locally and internationally in the fight against trafficking.

Dianne Amato is program director of the Mary Magdalene Project, a Los Angeles-based outreach to sex workers.

Karre Shaefer is director of the Kansas branch of Not for Sale: Re-Abolish Slavery and focuses on human rights and ethnic conflict.

Mark Rodgers is dean of the College of Health and Human Services at Marywood University, a Catholic university in Scranton, Pa. His research interests include the prevention of human trafficking, and he has helped train officials in Latvia, Bangladesh, Ecuador and South Africa on how to recognize and combat the problem.

Becky McDonald founded Women at Risk International, a Christian organization that works with trafficked women and is based in Grand Rapids, Mich.