Ray Kurzweil For over three decades, Ray Kurzweil has been one of the most respected and provocative advocates of the role of technology in our future. In his classic The Age of Spiritual Machines, he argued that computers would soon rival the full range of human intelligence at its best. Now he examines the next step in this inexorable evolutionary process: the union of human and machine, in which the knowledge and skills embedded in our brains will be combined with the vastly greater capacity, speed, and knowledge-sharing ability of our creations.

Xiu Xiu No description.

Steven D. Levitt, Stephen J. Dubner Economics is not widely considered to be one of the sexier sciences. The annual Nobel Prize winner in that field never receives as much publicity as his or her compatriots in peace, literature, or physics. But if such slights are based on the notion that economics is dull, or that economists are concerned only with finance itself, Steven D. Levitt will change some minds. In Freakonomics (written with Stephen J. Dubner), Levitt argues that many apparent mysteries of everyday life don't need to be so mysterious: they could be illuminated and made even more fascinating by asking the right questions and drawing connections. For example, Levitt traces the drop in violent crime rates to a drop in violent criminals and, digging further, to the Roe v. Wade decision that preempted the existence of some people who would be born to poverty and hardship. Elsewhere, by analyzing data gathered from inner-city Chicago drug-dealing gangs, Levitt outlines a corporate structure much like McDonald's, where the top bosses make great money while scores of underlings make something below minimum wage. And in a section that may alarm or relieve worried parents, Levitt argues that parenting methods don't really matter much and that a backyard swimming pool is much more dangerous than a gun. These enlightening chapters are separated by effusive passages from Dubner's 2003 profile of Levitt in The New York Times Magazine, which led to the book being written. In a book filled with bold logic, such back-patting veers Freakonomics, however briefly, away from what Levitt actually has to say. Although maybe there's a good economic reason for that too, and we're just not getting it yet. --John Moe

Ron Fricke The word Baraka means "blessing" in several languages; watching this film, the viewer is blessed with a dazzling barrage of images that transcend language. Filmed in 24 countries and set to an ever-changing global soundtrack, the movie draws some surprising connections between various peoples and the spaces they inhabit, whether that space is a lonely mountaintop or a crowded cigarette factory. Some of these attempts at connection are more successful than others: for instance, an early sequence segues between the daily devotions of Tibetan monks, Orthodox Jews, and whirling dervishes, finding more similarity among these rituals than one might expect. And there are other amazing moments, as when sped-up footage of a busy Hong Kong intersection reveals a beautiful symmetry to urban life that could only be appreciated from the perspective of film. The lack of context is occasionally frustrating--not knowing where a section was filmed, or the meaning of the ritual taking place--and some of the transitions are puzzling. However, the DVD includes a short behind-the-scenes featurette in which cinematographer Ron Fricke (Koyaanisqatsi) explains that the effect was intentional: "It's not where you are that's important, it's what's there." And what's here, in Baraka, is a whole world summed up in 104 minutes. --Larisa Lomacky Moore

Niels Ferguson, Bruce Schneier Security is the number one concern for businesses worldwide. The gold standard for attaining security is cryptography because it provides the most reliable tools for storing or transmitting digital information. Written by Niels Ferguson, lead cryptographer for Counterpane, Bruce Schneier's security company, and Bruce Schneier himself, this is the much anticipated follow-up book to Schneier's seminal encyclopedic reference, Applied Cryptography, Second Edition (0-471-11709-9), which has sold more than 150,000 copies.
Niels Ferguson (Amsterdam, Netherlands) is a cryptographic engineer and consultant at Counterpane Internet Security. He has extensive experience in the creation and design of security algorithms, protocols, and multinational security infrastructures. Previously, Ferguson was a cryptographer for DigiCash and CWI. At CWI he developed the first generation of off-line payment protocols. He has published numerous scientific papers.
Bruce Schneier (Minneapolis, MN) is Founder and Chief Technical Officer at Counterpane Internet Security, a managed-security monitoring company. He is also the author of Secrets and Lies: Digital Security in a Networked World (0-471-25311-1).