Information sources that have been written by academics, experts or creative practitioners in a particular field or discipline, and published in books, conference publications and academic journal articles, can usually be considered scholarly.
They may report on original research, review books and performances, address current issues facing the contemporary performing arts, or examine events through the lenses of history and theory. They are your best source of information about practice and industry, as well as issues pertaining to the creative process, choreography, gender, race, politics and cultural heritage within the performing arts.