That one is a good (and quick) read. But it really only concentrates on Tahitians and long-line systems. Not much help with akoya or freshwater.
I would not dive into the farming business based on the JS Beads manual either
I think it is important to note, since the page is in this thread, that the reasons given for improved quality are not correct. It is not the financial stability and longer culturing times that have increased the quality of China's freshwaters so substantially. It was the industry wide shift from Cristaria plicata to Hyriopsis cumingi, and the lowering of grafts on either valve to 12-16.