The Civil Rights Collection, one of the major existing archives of civil rights photography, comprises some 27,000 mostly black and white images, the work of several photographers done largely in Mississippi, Louisiana, Alabama, and Georgia in the early to mid sixties. Some image files extend beyond these limits. The Collection includes work from three points of view: movement photography expressing the concerns and activities of civil rights organizations; photojournalism covering important events of the period, often as assignments for major picture magazines; and social documentary photography of the human and the natural landscape of the South. Some of the photographs were made by the Southern Documentary Project, a team of eight photographers advised by Dorothea Lange that documented social change during the summer of 1964 when more than 1000 students from northern colleges entered Mississippi to teach in Freedom Schools and carry out voter registration.