The Age of Reason, The Complete Edition contains all of Thomas Paine's thought-provoking and insightful ideas about God, Deism and religion. Not only does it have the first two parts of The Age of Reason, as most editions have, it also has the third part of The Age of Reason, PLUS all of Paine's amazing essays and correspondence regarding God and Deism and the importance of freeing ourselves from the ungodly fear-based superstitions of the "revealed" religions.