The 80/20 Principle Book by Richard Kochpremium off white cream pages Stitched binding Matte cover local premium copy Language English Dimensions 5. 5 x 8. 26 inches Pages amount 362 Summary The 80 20 Principle by Richard Koch explores the idea that 80% of results often come from just 20% of efforts, a concept derived from the Pareto Principle. The book applies this principle to various aspects of life, including business, productivity, and personal success, urging readers to focus on the