Al Switzler's books are nonfiction self-help written with co-authors, aimed at practical skills for dealing with people. Crucial Conversations: Tools for Talking When Stakes Are High, written with Kerry Patterson, Joseph Grenny and Ron McMillan, lays out a method for handling talks where opinions clash and emotions run hot. Influencer: The Power to Change Anything, with those authors and David Maxfield, turns to changing habits and behavior.