These questions serve several purposes. They will help you to review and consolidate the material in each chapter; to explore the wider implications of some issues; and to bring together topics treated in different chapters. Typically, there is no one “right” answer: the aim is to stimulate discussion and wider thought.
These questions can be addressed just using the text of the book. (There are a small number of exceptions, where external sources are given.) However, a page listing useful external links gives you a gateway into the wider literature. We hope that you will find the effort put into answering these questions rewarding.