Gary Hamel, director of the Management Innovation eXchange and author of the HBR article "First, Let's Fire All the Managers."

Umair Haque, director of the Havas Media Labs and author of "Betterness: Economics for Humans."

Mihir Desai, Harvard Business School professor and author of the HBR article "The Incentive Bubble."

John Lees, career strategist and author of "How to Get a Job You'll Love."

Tom Davenport, Babson College professor and coauthor of "Judgment Calls: Twelve Stories of Big Decisions and the Teams That Got Them Right."

Christiane Amanpour, renowned war correspondent and news anchor.

Paul Polman, CEO of Unilever.

Grant McCracken, anthropologist and author of "Culturematic: How Reality TV, John Cheever, a Pie Lab, Julia Child, Fantasy Football . . . Will Help You Create and Execute Breakthrough Ideas."

Nancy Koehn, Harvard Business School historian and editor of "The Story of American Business."

Jeff Bezos, CEO of Amazon.com.

John Mackey, co-CEO of Whole Foods Market and coauthor of "Conscious Capitalism: Liberating the Heroic Spirit of Business."

Jeanne Meister, partner at Future Workplace and contributor to the "HBR Guide to Managing Up and Across."

Jorge Cauz, president of Encyclopaedia Britannica.

Mary Robinson, former President of Ireland.

Bruce Feiler, New York Times columnist and author of "The Secrets of Happy Families."

Dr. Maya Angelou, renowned author.

Steven G. Mandis of Columbia Business School discusses his book, "What Happened to Goldman Sachs: An Insider's Story of Organizational Drift and Its Unintended Consequences."

The Dilbert creator talks with HBR senior editor Dan McGinn.

Ram Charan, coauthor of "Boards that Lead," talks about what he's learned in three decades of helping executives make tough decisions.

Eric Clayberg, Google software-engineering manager, talks with Harvard Business School professor David Garvin about the feedback and training that he and others at the company receive through Project Oxygen.

Freek Vermeulen of London Business School explains how best practices become bad practices.

Amy Bernstein, editor of HBR, offers executive summaries of the major features.

Gianpiero Petriglieri, professor at INSEAD, on the new global elite.

The former Secretary of Defense talks with HBR editor-in-chief Adi Ignatius about his new book, "Duty: Memoirs of a Secretary at War."

The founder of the Khan Academy talks with HBR senior editor Alison Beard.

John Jullens of Booz & Company says multinationals from China and other emerging markets must learn to innovate and manage quality while remaining nimble.

Robert Simons, Harvard Business School professor, says companies still struggle to choose the right customer.

Sam Palmisano, former CEO of IBM, on striking a balance between running a company for the long term and keeping investors happy.

Charles Casto, recently retired from the Nuclear Regulatory Commission, on how smart leadership saved the second Fukushima power plant.

The tech luminaries on bundling and unbundling in the digital age.

J. Craig Venter, the biologist who led the effort to sequence human DNA, on unlocking the human genome and the importance of building extraordinary teams for long-term results.

Eric Schmidt, executive chairman, and Jonathan Rosenberg, former SVP of products, explain how the company manages their smart, creative team.

Steve J. Martin, coauthor of "The Small Big: Small Changes That Spark Big Influence," on the little things that persuade.

Stanford's Ron Howard, one of the fathers of decision analysis, explains how it's done.

Cass Sunstein, Harvard professor and author of "Wiser: Getting Beyond Groupthink to Make Groups Smarter."

Amy Bernstein, editor of HBR, offers executive summaries of the major features.

Nicholas Carlson, author of "Marissa Mayer and the Fight to Save Yahoo," on the CEO's management style.

The Hollywood icon explains why she moved from acting to producing and directing, then launched a foundation that teaches mindfulness to kids.

Regina Herzlinger, Harvard Business School professor, talks about how to dismantle the barriers to innovation in care delivery.

Amy Bernstein, editor of HBR, offers executive summaries of the major features.

R. "Ray" Wang, author of "Disrupting Digital Business" on how business is transforming.

David Krantz, the CEO of YP (formerly the Yellow Pages), explains how they've reinvented their business.

Juan Enriquez and Steve Gullans explain how we're "evolving ourselves."

The acclaimed writer describes how he develops his novels, what he expects from reviewers, and why business people should still read fiction.

Sally Osberg, president and CEO of the Skoll Foundation and author of "Getting Beyond Better" with Roger Martin.

Norman Winarsky, coauthor of "If You Really Want to Change the World," on ventures that scale.

Amy Gallo, author of the "HBR Guide to Managing Conflict at Work," explains the options.

Denise Lee Yohn, author of "Extraordinary Experiences" and "What Great Brands Do," explains what we can learn from retail and restaurant brands

Tara Mohr, author of Playing Big, explains how to deal with self-doubt (or help someone else manage theirs).

Amy Bernstein, editor of HBR, offers executive summaries of the major features.