The Southeastern Ceremonial Complex (SECC) Conference is an annual conference devoted to the study and interpretation of Native American art of the Mississippian period. It is a multi-disciplinary approach referred to, in a recent publication, as the San Marcos School of Interpretation. 2005 marks the thirteenth annual meeting of the conference.

Hosted by Dr. F. Kent Reilly III, the conference began its' roots in the spring of 1992 in conjunction with the Mayan Hieroglyphic Workshop held at the University of Texas in Austin, Texas. Shortly after, the conference was moved to Texas State University-San Marcos (called Southwest Texas University at the time) in San Marcos, Texas. It has resided in San Marcos since.

To facilitate this multi-disciplinary approach, past participants to the conference have included Anthropologists, Archaeologists, Native Americans, Art Historians and Folklorists.

Publications include:

Reilly, F. Kent, III and James F. Garber, eds. 2006. Studies in Mississippian Iconography, vol 1. University of Texas Press.

Townsend, Richard F., ed. 2004. Hero, Hawk and Open Hand: American Indian Art of the Ancient Midwest and South, Yale University Press.

Participants have also presented numerous papers at symposiums throughout the Southeast.