From the Greek summary: A guide to ropes and cables, with their uses and safety rules. It brings together in a self-contained text what one needs to know about the purchase, use and maintenance of ropes of all sizes and types. It is addressed both to professional sailors and to amateurs who are engaged in any kind of activity related to the use of ropes, such as fishermen, machine operators and maintainers, climbers, skiers, athletes, etc. Guides the reader, mainly with easy-to-understand figures, thus avoiding hard-to-understand descriptions that often cause confusion.