"Go Studies: A History of Adventure" is a free eBook made by Sinan Djepov, focused around his experiences in the three month long trip to China to participate in the Ge Yuhong Go Academy.
The reader is invited to join Sinan in his endeavours as he tries to go deeper in the understanding of Go. In the book, one can find discussions around new opening ideas and joseki sequences, trick plays, in depth discussions around Artificial Intelligence move choices and much more. Overall, the reader can get a glimpse of what it means to seriously study Go in China in the 21st Century.
You can get the eBook free from his website here: http://explorebaduk.com/book/