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--Helen Fisher, author of Why We Love
"Paul Zak tells the remarkable story of how he discovered and explored the biochemistry of sympathy, love and trust with the narrative skill of a novelist. Philosophy, economics and biology have rarely been so entertaining."
--Matt Ridley, author of Genome
"An ancient mammalian molecule prods us to bond with others. Paul Zak offers a most engaging account of this important discovery, bound to overthrow traditional thinking about human behavior, including economics and morality."
--Frans de Waal, author of The Age of Empathy
"Paul Zak's investigations into the best things in life are inspired, rigorous, and tremendous fun. We need more daring economists like him."
-- Tyler Cowen, author of An Economist Gets Lunch
"Zak has always been intrepid, with a sense of innocent but parsimonious wonder, and as a result his book on rather severe issues is nevertheless fresh--and moral."
--Lionel Tiger, author of God's Brain
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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