This mosaic can be found in front of the Kyobo Gangnam Tower, in Seoul.
I picked up this book at my local library and its a beauty. The authors are George Shannon and Pat Torlen who own and operate the On the Edge Glass Studio in Winnipeg, Canada.If you want to explore using stained glass, this seems like a really good place to start. Lots of pictures, clear cut instructions and it seems very doable. Very pretty projects too. I was especially caught up by the section on making stained glass stepping stones from scratch. Definitely worth a look.