The basis of this book is a series of specific cases that present the kinds of ethical problems faced by both students and practicing chemists. Following these cases are commentaries that discuss the ethical issues raised, and present possible solutions in the form of morally acceptable courses of action. The introductory chapters provide an overview of ethics, morals, and ethical theory, as well as a discussion of professionalism and ethics in science. Ethical problem solving is explored in the chapter preceding the cases and commentaries. For chemists and scientists in other disciplines facing similar situations.