The Aquarian Conspiracy: Personal and Social Transformation in the 1980s (1980) by Marilyn Ferguson is a foundational text of the New Age movement that argues a major, decentralized paradigm shift is occurring in human consciousness. Ferguson posits that a "leaderless but powerful network" of individuals—the "conspirators"—are working to transform society from the ground up by changing their own personal attitudes, perceptions, and values.
In summary, The Aquarian Conspiracy is a study of a quiet revolution that argues the ultimate transformation of society occurs when individuals realize their own power to change their consciousness and, by extension, their reality.