Professor Raymond Wacks is a leading international expert on privacy. For more than three decades he has published numerous books and articles on this controversial subject. Privacy is a fundamental value that is under attack from several quarters. Electronic surveillance, biometrics, CCTV, ID cards, RFID codes, online security, the monitoring of employees, the uses and misuses of DNA, - to name but a few - all raise fundamental questions about our right to privacy. This Very Short Introduction also analyzes the tension between free speech and privacy generated by intrusive journalism, photography, and gratuitous disclosures by the media of the private lives of celebrities. Professor Wacks concludes this stimulating introduction by considering the future of privacy in our society.