Elinor Scully, Head of School of Langley School and former Associate Head of National Cathedral School, discusses leadership lessons at independent schools.

Elinor Scully, Head of School of Langley School and former Associate Head of National Cathedral School, discusses leadership lessons at independent schools.

Elinor Scully, Head of School of Langley School and former Associate Head of National Cathedral School, discusses leadership lessons at independent schools.

Elinor Scully, Head of School of Langley School and former Associate Head of National Cathedral School, discusses leadership lessons at independent schools.

Stephanie Meeks, President of the National Trust for Historic Preservation, discusses identifying and saving significant threatened places.

Stephanie Meeks, President of the National Trust for Historic Preservation, discusses identifying and saving significant threatened places.

Matthew Melmed, Executive Director of ZERO TO THREE, discusses promoting the health and development of infants and toddlers through practical tools.

Matthew Melmed, Executive Director of ZERO TO THREE, discusses promoting the health and development of infants and toddlers through practical tools.

Lisa Truitt, President of National Geographic Cinema Ventures, discusses producing and distributing National Geographic's giant-screen, 3D, and specialty films.

Lisa Truitt, President of National Geographic Cinema Ventures, discusses producing and distributing National Geographic's giant-screen, 3D, and specialty films.