We just released the Korean edition of Bootstrap Grammar:
https://www.amazon.com/dp/0645531480
Bootstrap Korean Grammar is a new way to learn Korean grammar. Starting from the beginning, the idea is progress in small self-contained steps (called ‘topics’). Each topic builds on the last, by incrementally adding new grammatical patterns, new vocabulary and lot of useful examples.
In total there are 185 grammar topics and 3,200 examples phrases.
The companion mobile application is now available called “BootStrap Korean Grammar”. The app contains all the content contained in this book – including 185 grammar topics and 3200 example phrases. And in additional, there is high quality Korean native-speaker audio for every example.
The companion iOS mobile app is available here:
https://apps.apple.com/app/id1633765066