South Korea guidebook; "Climb" by Dong-IL

Hi! I recently saw on an online trip report saying that there's a guidebook made for South Korea by Dong-IL. I tried looking up more information about it online but couldn't really find anything else. Anyone know anything about it? Like if its's still in print, what areas are covered, and how useful it is? 

Any info regarding the book in general would be greatly appreciated! Thx!

Steven 

I just did a search and it's available as a free 159 page download here:

https://s3-us-west-2.amazonaws.com/hazelcruzado/South+Korea+Guidebook.pdf 

It's in English and written in 2012.  Looks pretty cool and well done, with some nice photos!

See also:
https://expatguidekorea.com/article/where-to-go-rock-climbing-and-bouldering-in-korea.html

Rock on Terry! Thanks so much for those links, that's super helpful!