What stands out about this textbook is the inclusion of interviews with practitioners.
Beyond Reason: Using Emotions as You Negotiate by Roger Fisher; Daniel Shapiro
This textbook is the latest edition, so all information is current.
Beyond Reason: Using Emotions as You Negotiate by Fisher, Roger; Shapiro, Daniel
What stands out about this textbook is the way each concept is introduced with a question.
Beyond Reason: Using Emotions as You Negotiate by Roger Fisher; Daniel Shapiro
This textbook is the standard edition used in most introductory courses.

