A Volunteer Youth Worker's Guide to Understanding Today's Teenagers
Mark Oestreicher (Marko) is a veteran youth worker and former president of Youth Specialties. The author of dozens of books, including Youth Ministry 3.0 and Middle School Ministry, Marko is a sought after speaker, writer and consultant. Marko leads the Youth Ministry Coaching Program and other projects under the banner of The Youth Cartel. Marko lives in San Diego with his wife Jeannie and two teenage children.