Vols. for 1950-19 contained treaties and international agreements issued by the Secretary of State as United States treaties and other international agreements.

The Coin Collectors' Handbook is by a collector from the perspective of a collector. It is what collectors have read or asked about their collections. The book does not tell you how to collect or what to collect. It is a handbook. Although you can read the chapters in order, each chapter is an individual essay. When you want to learn more about that topic, pick up the book, and read it as needed. Regardless of what you collect, always collect what you like and like what you collect!