I received this book through Goodreads First Reads.
The quality of book is very good! A hardcover, the paper, perfect!
German/English edition, the book is about a secret project of 1920s. Many photos, illustrations and documents from letters, notes and prophecies of Dr Stanislaus Schwenck.
Non-fiction, Codex Roboticus is recommended and may be interesting for everyone who enjoys the mysteries about the sombre atmosphere of post-war Germany.