Renée Mauborgne of INSEAD explains how a landmark idea is evolving. She is coauthor, along with W. Chan Kim, of "Blue Ocean Strategy, Expanded Edition (2015)."

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

Gretchen Rubin, author of "Better than Before: Mastering the Habits of Our Everyday Lives," explains that you've got to know your habit-setting style.

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

Peter Bregman, author of "Four Seconds," on changing the way you lead.

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

Herminia Ibarra, author of "Act Like a Leader, Think Like a Leader" and professor at INSEAD, on moving forward, even when it's not comfortable.

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

Blake Irving talks about the company's renewed focus on small businesses and bringing on a new leadership team.

Muriel Maignan Wilkins, coauthor of "Own the Room," on the flaws everyone's too polite to point out.