 John Kirtland Wright (1891–1969), an American geographer notable for his cartography and study of the history of geographical thought, coined the related term geosophy in 1947, for this kind of broad study of geographical knowledge.Other books oft-cited as key works in the field include David Harvey's 1969 "Explanation in Geography" and Henri Lefebvre's 1974 The Production of Space.It was a discussion of issues raised by the latter which in part inspired the founding of a "Society for Philosophy and Geography" in the 1990s.