The Secret Team
Just came across this anons. It was one of the first books to detail the inner workings of the CIA; even though this version (seems to be a draft) was set to be published in 1997, you can see the author (Col. L. Fletcher Prouty, USAF):
>This book is about the real CIA and its allies around the world. It is based upon personal experience generally derived from work in the Pentagon from 1955 to 1964. At retirement, I was Chief of Special Operations (clandestine activities) with the U.S. Joint Chiefs of Staff. These duties involved the military support of the clandestine activities of the CIA and were performed under the provisions of National Security Council Directive No. 5412/2.
…
>I was the first author to point out that the CIA's most important "Cover Story is that of an "Intelligence" agency. Of course the CIA does make use of "intelligence" and "intelligence gathering", but that is largely a front for its primary interest, "Fun and Games." The CIA is the center of a vast mechanism that specializes in Covert Operations…or as Allen Dulles used to call it, "Peacetime Operations". In this sense, the CIA is the willing tool of a higher level Secret Team, or High Cabal, that usually includes representatives of the CIA and other instrumentalities of the government, certain cells of the business and professional world and, almost always, foreign participation. It is this Secret Team, its allies, and its method of operation that are the principal subjects of this book.
enjoy!