Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer and science popularizer. He pioneered exobiology and promoted the Search for ExtraTerrestrial Intelligence (SETI). He is world-famous for his popular science books and the television series Cosmos, which he co-wrote and presented. He also wrote the novel Contact on which the 1997 film of the same name starring Jodie Foster was based. In his works, he frequently advocated the scientific method.

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"A glorious book . . . A spirited defense of science . . . From the first page to the last, this book is a manifesto for clear thought."

*Los Angeles Times

"POWERFUL . . . A stirring defense of informed rationality. . . Rich in surprising information and beautiful writing."

*The Washington Post Book World

How can we make intelligent decisions about our increasingly technology-driven lives if we don't understand the difference between the myths of pseudoscience and the testable hypotheses of science? Pulitzer Prize-winning author and distinguished astronomer Carl Sagan argues that scientific thinking is critical not only to the pursuit of truth but to the very well-being of our democratic institutions.

Casting a wide net through history and culture, Sagan examines and authoritatively debunks such celebrated fallacies of the past as witchcraft, faith healing, demons, and UFOs. And yet, disturbingly, in today's so-called information age, pseudoscience is burgeoning with stories of alien abduction, channeling past lives, and communal hallucinations commanding growing attention and respect. As Sagan demonstrates with lucid eloquence, the siren song of unreason is not just a cultural wrong turn but a dangerous plunge into darkness that threatens our most basic freedoms.

"COMPELLING."

*USA Today

"A clear vision of what good science means and why it makes a difference. . . . A testimonial to the power of science and a warning of the dangers of unrestrained credulity."

*The Sciences

"PASSIONATE."

*San Francisco Examiner-Chronicle