100 Zen Rock Garden Diagrams Explained

Quick answer：

Karesansui, also known as Zen rock garden, is a form of Japanese rock garden that uses rocks, sand, and gravel arranged to represent a landscape. The '100 Zen Rock Garden Diagrams Explained' would be a guide or book detailing 100 different designs of these gardens, explaining the principles and techniques behind each. This might include the use of stones to symbolize mountains, the placement of trees and other elements, and the importance of balance and simplicity in Zen garden design.