If you read them, which one is better for you between these two books of Yilun Yang: Workshop lectures volume n.2 and Fundamental Principles of Go?

The fact is that I need to choose between these two as I decided to order another couple from slate&shell and there is a limit for the shipping envolope. Which one should I choose, considering also the different prices (15$ and 25$ respectively)?

Thank you in advance for your comments!

Ichiryuu

I would pick Fundamental Principles of Go. It's got a lot more info compared to just one of the workshop lectures books.

I would buy the workshop lecture, with the plan to later buy the other 5 also. I'd rather have the 6 workshops together than the Fundamentals book alone. (Of course I have all of them )

Actually I think I'll buy the whole series with one purchase, so I can benefit of some discount. I think then I'm going to buy the Fundamentals for the moment being, along with "Old Fuseki vs New Fuseki"