A Concise History of the Klingon Empire was a book written by G.L. Coon. This book was among the works used by the USS Enterprise-A crew in 2293 to present themselves as a Klingon vessel. (Star Trek VI: The Undiscovered Country) The fictional author of this book refers to the Star Trek: The Original Series producer, Gene L. Coon. This and other similar items, including Okrand's Unabridged Klingon Dictionary, were sold together in the 40 Years of Star Trek: The Collection auction. It was lot #777, entitled "UHURA'S KLINGON REFERENCE BOOKS". The winner paid US$2,880 for the lot.