Ecommerce Influence, New and Expanded: The Psychology of Persuasion 4.6 out of 5 stars(4657242) $50.16 (as of 11:11 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.) Unreasonable Hospitality: The Remarkable Power of Giving People More Than They Expect 4.8 out of 5 stars(4856009) $26.56 (as of 11:11 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.) Traction: Get a Grip on Your Business 4.6 out of 5 stars(4658932) $25.95 (as of 11:11 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.) Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not! 4.7 out of 5 stars(475103935) $12.99 (as of 11:11 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.) Never Split the Difference: Negotiating as if Your Life Depended on It 4.7 out of 5 stars(47548691) $28.42 (as of 11:11 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)