Never before has humanity had access to so much information as it does today. Never has it been easier to access information. However, this also brings problems. What is right, and what is wrong? Who is lying to us and why? How can we quickly expose misinformation ourselves? What can we do if we are affected by internet lies or cyberbullying? Who produces the news and who owns it? Can the media deceive us with accurate numbers? And how do fake news change our world? Democracy needs informed voters. Following their bestseller "Against Prejudice: How to Defend Yourself with Good Arguments Against Stupid Claims," Nina Horaczek and Sebastian Wiese now present a critical guide through the media landscape. The book is also a compelling appeal, especially to young readers: Don't let yourselves be deceived - educate yourselves!.