The book is a reference for how to be a good critical thinker, exploring several different aspects of critical thinking. Some of these include logical fallacies, cause and effect reasoning, axioms of science and the scientific method, conspiracy theories, and debunking. The debunking chapter provides tactics and resources for spotting misinformation and disinformation, fake news, and deep fakes. This is a timely book, much needed in this era of disinformation.