Abstract
The contents of Professor Hancock’s book are somewhat more modest than its title. Although the author begins by writing "the primary aim of this book is to give a critical presentation of the main types of ethical theory developed in the twentieth century", he immediately limits his undertaking: first to ethics in the Anglo-American tradition, then to the work of academic philosophers, as well as to meta-ethics. He offers several reasons for so limiting himself, including his own special interests in ethics.