Fake news, alternative facts, misinformation. These buzzwords have been making headlines all too regularly in the last few years. Who to trust and how to tell apart well-executed science from bunk has become increasingly challenging amidst the information overload of our internet era. The edited collection Pseudoscience: The Conspiracy Against Science brings together 22 contributions that examine the problem of pseudoscience from a variety of perspectives. The unbelievable things people believe in may be easy to mock, but, as this book makes clear, they are no laughing matter.