The Parasitic Mind: How Infectious Ideas Are Killing Common Sense

The Parasitic Mind: How Infectious Ideas Are Killing Common Sense

by Gad Saad

4.7 (6,055)

4.7 stars from 6,055 reviews. One of the highest rated Nonfiction books we track.

118 pages~2 hr readPublished by Regnery Publishing, Incorporated, An Eagle Publishing CompanyPublished 2020-01-01

$1.9988% off peak

Last checked: Jun 24, 2026

Price history: $1.99 $16.99

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Fans of these authors will like this...

  • Jordan Peterson
  • Jonathan Haidt
  • Douglas Murray

Fans of these books will like this...

  • 12 Rules for Life
  • The Coddling of the American Mind
  • The Madness of Crowds

Perfect for you if...

  • You're concerned about how quickly certain ideologies have shifted cultural institutions and want a diagnosis of what's actually happening.
  • You appreciate Jordan Peterson's framing of cultural problems and want a more focused, scientific take on the same themes.
  • You've noticed self-censorship in your workplace or social circles and want validation that you're not imagining the shift.

Maybe not for you if...

  • You're looking for nuance on progressive politics or a good-faith debate across ideological lines; this book isn't that.
  • You prefer books that lead with evidence and peer-reviewed research over polemic arguments.
  • You find the 'West is falling apart' narrative exhausting and want something more constructive.

About this book

Dr. Gad Saad, host of the YouTube show "The SAAD Truth," argues that the West's commitment to freedom, reason, and liberalism faces threats from viral ideological forces in contemporary society. He describes an epidemic of what he calls "idea pathogens" spreading through Western culture and eroding common sense. Saad, a professor at Concordia University, examines various concerning thought patterns, belief systems, and attitudes that have contributed to political correctness. He discusses what is happening in progressive spaces, why these trends warrant attention, and what steps are necessary to counter the spread of what he views as dangerous thinking. The book addresses the serious consequences of these developments and calls for intervention.

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Kindle price over time. Green zones = periods when the book was free.

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Free$8.49$16.99May '20May '24Nov '25Jun '26
$1.99$16.99

Currently on sale at $1.99 — 88% off peak. Price has dropped 9 times over the last 6 years. Goes on sale roughly every 100 days. Typically stays discounted for 14 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#2,800#186,166#369,532May '20Sep '22Jun '25May '26

Currently #9,756 in the Kindle store — a top-10K bestseller.

Rating & Reviews

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4.0★4.5★5.0★May '23Jan '24Oct '24Jun '26RatingReviews

Currently 4.7★ from 6,055 reviews

Gaining approximately 46 new reviews per month. Steady word of mouth growth. Rating has remained stable at 4.7 over the tracking period.

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Free$8.49$16.99May '20May '24Nov '25Jun '26PredictedJun '26

Actual Predicted

This book is currently discounted at $1.99. It typically returns to around $16.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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