This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (February 2012) Mark Victor Hansen (born January 8, 1948) is an American inspirational and motivational speaker, trainer and author. He is best known as the founder and co-creator of...
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This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (February 2012) Mark Victor Hansen (born January 8, 1948) is an American inspirational and motivational speaker, trainer and author. He is best known as the founder and co-creator of...