Pierre Wack (1922–1997) was an unconventional French oil executive who was the first to develop the use of scenario planning in the private sector, at Royal Dutch Shell’s London headquarters in the 1970s. So successful was he that the Anglo-Dutch oil giant was able to anticipate not just one Arab-induced oil shock during that decade, but two. His 1985 articles "Scenarios: Uncharted Waters Ahead" and "Scenarios: Shooting the Rapids" are considered among the first to bring the thoughts and theories of futurist Herman Kahn into business strategy. Thanks to his work for de Beers Co in South of Africa, he met Nelson Mandela and participate at the end of apartheid.
- Wack, Pierre. "Scenarios: Uncharted Waters Ahead", Harvard Business Review. September-October, 1985.
- Wack, Pierre. "Scenarios: Shooting the Rapids", Harvard Business Review. November-December, 1985.