"Difficult Conversations: How to Discuss What Matters Most" by Douglas Stone, Bruce Patton, and Sheila Heen.
"Why Smart People Make Big Money Mistakes and How to Correct Them: Lessons from the New Science of Behavioral Economics" by Gary Belsky and Thomas Gilovich
"Getting to Yes" by Roger Fisher, William L Ury, and Bruce Patton.
"Getting Past No" By William Ury
"Divorce without Disaster" by Janet P. Brumley and Lori Fairchild
"The Collaborative Way to Divorce: The Revolutionary Method that Results in Less Stress, Lower Costs, and Happier Kids, without Going to Court" by Ron Ousky and Stuart Webb.