Principles of Macroeconomics, Eighth edition, by N. Gregory Mankiw, is a comprehensive textbook that covers various topics related to economics, including macroeconomics, economic conditions, and teaching methods. The book is published by Cengage Learning and is part of the Mindtap Course List Series. The textbook is a trade paperback with 576 pages and weighs 37.7 ounces. It measures 10 inches in height, 8.4 inches in width, and 0.9 inches in length. The book is written in English and has been revised to include the latest developments in the field. It is an excellent resource for students, educators, and professionals who want to learn more about economics.