I originally read Katz's book in 1995. Images and examples from the book stick with me to do this day. It is the very ordinariness of evil actions (unethical choices) that makes this book outstanding. I recommend that people who work in any kind of organization read this book and think about it the next time they say or think, "It won't hurt anyone if I do it this way this one time," or "I'm just obeying orders. . ." A frightening but illuminating book.