Seitsme nimega tüdruk (The Girl with Seven Names) by Hyeonseo Lee

The Girl with Seven Names - Hyeonseo Lee, John David Mann

The author was born in North Korea. When she was 17 she crossed the border river to China. The following years she tried to start a new life while hiding from the Chinese police. Twelve years later she managed to go to South Korea. And then she decided to go back to China and help her family to escape from North Korea as well. 
Great book. Very honest and exciting book which broadened my mind.

 

The cover of the Estonian edition