In an era of unprecedented access to knowledge, why does ignorance thrive? Why do conspiracy theories, science denial, and anti-expert sentiment dominate public discourse? And how did we reach a point where misinformation spreads faster than facts, and critical thinking is treated as an elitist threat? From the war on expertise and the rise of conspiracy thinking to the manipulation of public opinion through propaganda and technology, this book reveals the deep-rooted causes of our current crisis. More importantly, it offers a roadmap to reclaim reason, evidence-based discourse, and the intellectual curiosity necessary for a thriving society. The Cult of Ignorance is a thought-provoking exploration of the forces fueling modern anti-intellectualism. Drawing from history, psychology, media analysis, and political strategy, this book unpacks how ignorance is not merely a lack of knowledge but a weaponized ideology-one that serves powerful interests, weakens democracy, and threatens societal progress.