Industrial Society and Its Future, widely called the Unabomber Manifesto, is a essay by Ted Kaczynski contending that the Industrial Revolution began a harmful process of technology destroying nature, while forcing humans to adapt to machines, and creating a sociopolitical order that suppresses human freedom and potential. The manifesto formed the ideological foundation of Kaczynski's 1978-1995 mail bomb campaign, designed to protect wilderness by hastening the collapse of industrial society.

Theodore Kaczynski rejected modern society and moved to a primitive cabin in the woods of Montana. There, he began building bombs, which he sent to professors and executives to express his disdain for modern society, and to work on his magnum opus, Industrial Society and Its Future, forever known to the world as the Unabomber Manifesto. Responsible for three deaths and more than twenty casualties over two decades, he was finally identifed and apprehended when his brother recognized his writing style while reading the 'Unabomber Manifesto.' The piece, written under the pseudonym FC (Freedom Club) was published in the New York Times after his promise to cease the bombing if a major publication printed it in its entirety. Attorney General Janet Reno authorized the printing to help the FBI identify the author.