I am interested in an ethical issue all the time. So my favorite book is connectted with my interset. The name of book is 'Justice' written by Michael J. Sandel who is a professor in a harvard. That book comes from his lecture 'Justice'. This book starts common moral problems such as which one is better to scrifice one to save many people or not. That book explored to the priciple of ethics and how to deaal with those moral issues in view of the Right in ethics. That book is great to think about our ethics priciple and developing that.