Honesty is our most treasured virtue. Research has found that honesty is the single most important characteristic a person can possess when it comes to liking them, respecting them, and understanding them. But honesty is eroding at a frightening rate in many areas of society today, as we are confronted with a number of honesty crises. The frequency of deepfakes has skyrocketed, now that they are simple to make and untraceable. In our relationships, with the easy availability of online pornography, anonymous chatrooms, and infidelity websites like Ashley Madison, cheating in a relationship has never been easier. In education, many students are using AI to complete their writing assignments with little chance of detection. . In politics, social media helps with the dissemination of fake news, and polarization reduces our tendency to condemn political dishonesty if it aligns with our own views. In public spaces, it is easier to become a celebrity than it has ever been in human history, and yet celebrity encourages greater dishonesty. In religion, religious leaders are increasingly confronted by temptations to plagiarize sermon material from the Internet and AI. Christian Miller's The Honesty Crisis diagnoses this problem across a range of social phenomena, drawing on his years of research, and makes the case that the stakes are higher than we realize. Proposing concrete solutions, Miller's urgent and timely book will interest anyone concerned about the moral character of our world, and its future.