Ray Franz was a third generation Jehovah's Witness who spent 40 years of his life as a Witness and served for 9 of those years as a member of the governing body.
He helped author as well the Aid to Bible Understanding Book (The Aid Book) and has as much knowledge of the JW Organization as anyone could. This is true especially of the 'inner workings' of how the WTBTS and the Organization as a whole work.
Ray's two books are Crisis of Conscience and In Search of Christian Freedom.
They both can be found and ordered at the website below in addition to other online means. A highly recommended 'must read' for anyone wishing to see if the Jw Organization is truly what it claims to be.