American journalist Nym Wales, who was then Edgar Snow's wife, met him as she was curious of him because she learnt that many of the books written in English that she wanted to borrow from Lu Xun Library has been already borrowed by him, and interviewed him more than 22 times for three months from June to August 1937 at the library in Yan'an, while interviewing key Chinese revolutionaries including Mao Zedong.