 This shift led a number of library schools to change or broaden their mission to be more inclusive of information sciences across many disciplines including library sciences, archives, computer sciences and more, and led to the development by a number of schools of an "iSchool" organization, to advance the field of information as a whole.The normal preparation for a faculty member in a department of library science (or other name) is a Ph.D. in Library science or Information science.In some fields of librarianship, a Ph.D. in another related subject, such as archival studies, is the equivalent, and some faculty have doctorates in various subject fields, as well as an MLS (or similar) degree.