Notes:How to combat corruption? Noticable for its numerous, detailed and complex real-world examples from around the world, this book is a classic, trying to move the academic debate closer to actionable policy-advice. First, some forms of corruption are by far more harmful than other forms of corruption, so policy-makers should concentrate on the former category first. Second, the famous case of anti-corruption in the Philippino Bureau of International Revenue Service illustrates how critical insights from the principal-agent model of asymetric information play out in practice. Third, the book notices the importance of “soft” change in attitudes and habitual change. Fourth, Klitgaard is acutely aware of the pitfalls of his policy prescriptions, with anti-corruption agencies turning into just another corrupt bureaucracy. Klitgaard seems overly optimistic, since he does not fully take into account how powerful the group of losers from anti-corruption policy may be; think of the president in a neo-patrimonial system whose political survival relies on corruption.