Ceramic tiles require 4 things: earth, water, air, and fire.
The section on Processes for the product customization was interesting and easier to understand then the previous section. I was familiar with the grinder, hydraulic cutter, disc cutter and sand blasting but was interested in the future of the laser technology. When was this published? Has it grown in its industrial applications?
The last section was more historical and anthropologically based. It is amazing that the ceramic qanats (or canals) have lasted for so many years.