Hilary Hinton `` Zig '' Ziglar ( November 6 , 1926 -- November 28 , 2012 ) was an American author , salesman , and motivational speaker .
Hilary Hinton `` Zig '' Ziglar ( November 6 , 1926 -- November 28 , 2012 ) was an American author , historian , salesman , educator , and motivational speaker .