This book focuses on the improvement of farming tools that paves a way to agricultural modernization by reducing the backbreaking toil while raising productivity. This is seen in the primary interest of the farmers. This publication of 1958—appearing shortly before the Great Leap Forward (1958-61)—consists of four parts, entitled 1. How to raise work efficiency?, 2: How save labor power?, 3. How to save materials? 4. How to raise the quality of agricultural products?