I recently visited a professor of history and he had some real copies of North Korean history books circulated inside the country. Thought it might be interesting to share. I am guessing the books are not illegal for possession if it’s for academic and research purposes.
Complete History of Kim Il-sung
History of Joseon
(note: North Korea refers to them as “Joseon” while South Korea uses “Hanguk”)
REAL KOREANS 
Let me know what you think :)