Oral history is a method of gathering, preserving and interpreting the voices and memories of people, communities, and participants in past events. Oral histories today are generally conducted as recorded interviews which are then transcribed, and catalogued for placement in a library or archive. Oral histories are a means of accessing and preserving the stories of people whose experiences may have been underreported or unrecognized. They are particularly useful in preserving and accessing tacit knowledge, collective memory, and minorities or marginalized people.