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The bestselling author of The End of Nature issues an impassioned call to arms for an economy that creates community and ennobles our lives. In this powerful and provocative manifesto, Bill McKibben offers the biggest challenge in a generation to the prevailing view of our economy. For the first time in human history, he observes, "more" is no longer synonymous with "better"—indeed, for many of us, they have become almost opposites. McKibben puts forward a new way to think about the things we buy, the food we eat, the energy we use, and the money that pays for it all. Our purchases, he says, need not be at odds with the things we truly value.

Walter Isaacson is the President and CEO of the Aspen Institute. He has been the Chairman and CEO of CNN and the Managing Editor of TIME. He is the author of Benjamin Franklin: An American Life (2003) and of Kissinger: A Biography (1992), and is the co-author, with Evan Thomas, of The Wise Men: Six Friends and the World They Made (1986). His biography of Albert Einstein, Einstein: His Life and Universe, was published by Simon & Schuster in April 2007. In 2007, he became a columnist for TIME on international affairs.

Chris Anderson is editor-in-chief of Wired Magazine, which has won a National Magazine Award under his tenure. He coined the phrase The Long Tail in an acclaimed Wired article, which he expanded upon in the book The Long Tail: Why the Future of Business Is Selling Less of More (2006). He currently lives in Berkeley, California with his wife and five young children. He is the Chairman of a new startup, www.BookTour.com Before joining Wired in 2001, he worked at The Economist, where he launched their coverage of the Internet. He also has a degree in physics from George Washington University and did research at Los Alamos National Laboratory. He has also worked at the journals Nature and Science. The Long Tail has possible implications for culture and politics. Where the opportunity cost of inventory storage and distribution is high, only the most popular products are sold. But where the Long Tail works, minority tastes are catered to, and individuals are offered greater choice.

She's moved from Greece to America, from the east coast to the west coast, from the political right to the independent left. Arianna Huffington writes about how to move on in her new book: On Becoming Fearless. Huffington describes herself as a "former right-winger who has evolved into a compassionate and progressive populist". She is the founder of The Huffington Post . www.huffingtonpost.com Huffington is co-host of the nationally syndicated public radio program Left, Right & Center. She was originally introduced by the moderator as occupying the chair "from the right," but is now described as "coming from the fourth dimension of political time and space", or from the 'independent-progressive blogosphere'. In May 2007, she and Mark Green began co-hosting a new radio show on Air America Radio, 7 Days in America.