Jim and co-author Amy Edmondson explain why employees are afraid to speak up. These fears don't just prevent blowing the whistle on major problems; they're also the reason people hesitate to offer more routine improvement-oriented or innovative ideas.

Jim and co-authors Ethan Burris and Dave Harrison debunk myths about who speaks up and doesn't in organizations, and why silence is often pervasive.

It makes sense that you are emotionally charged when dealing with things that are truly important to you at work. But, as Jim and co-author Sue Ashford explain, you're unlikely to positively affect change on these issues if you can't identify and manage your own and your audience's emotions skillfully.