J. Lee Grady is contributing editor for Charisma Magazine, one of the leading periodicals of the Pentecostal community, and part of the Charisma Media group that produces magazines, books, other literature and ministry aids for Pentecostals. A veteran journalist, Grady is a knowledgeable and well-respected commentator on the Pentecostal scene.

The Florida-based Charisma Media Group is a major Pentecostal media source, publishing numerous magazines, including Charisma, books and other literature and ministry aids for Pentecostals.

The Arab World Institute is an organization founded in Paris in 1980 by 18 Arab countries with France to research and disseminate information about the Arab world and its cultural and spiritual values.  It functions as a museum and research center.

Patricia Telesco is the co-author of Sacred Beat: From the Heart of the Drum Circle. She has been participating in drum circles for many years and lives in Amhearst, N.Y. Contact via Bonni Hamilton, director of publicity for Red Wheel/Weiser.

Rabbi Rayzel Raphael leads drum circles in Philadelphia.

Jan Gregory was an adjunct professor of liturgy, worship and spirituality at Hartford Seminary in Hartford, Conn., where she taught a course in drumming and worship.

Drummers for Jesus is an international Christian ministry that spreads the gospel through drums. The ministry is based in Rockwall, Texas, and has a list of chapters throughout the U.S.

Terl Bryant is a drummer and author of A Heart to Drum, published in 2006. He lives in Great Britain.