Note: I had the book a long time back, but did not take notes. Copied these lessons from a comment on Reddit.

  • Part 1: Fundamental Techniques in Handling People
    • Principle 1: Don’t criticize, condemn or complain
    • Principle 2: Give honest and sincere appreciation
    • Principle 3: Arouse in the other person an eager want
  • Part 2: Six Ways to Make People Like You
    • Principle 1: Become genuinely interested in other people
    • Principle 2: Smile
    • Principle 3: Remember that a person’s name is to that person the sweetest and most important sound in any language
    • Principle 4: Be a good listener
    • Principle 5: Talk in terms of the other person’s interests
    • Principle 6: Make the other person feel important—and do it sincerely
  • Part 3: How to Win People to Your Way of Thinking
    • Principle 1: The only way to get the best of an argument is to avoid it
    • Principle 2: Show respect for the other person’s opinions. Never say, “You’re wrong.”
    • Principle 3: If you are wrong, admit it quickly and emphatically
    • Principle 4: Begin in a friendly way
    • Principle 5: Get the other person saying, “yes, yes” immediately
    • Principle 6: Let the other person do a great deal of the talking
    • Principle 7: Let the other person feel that the idea is his or hers
    • Principle 8: Try honestly to see things from the other person’s point of view
    • Principle 9: Be sympathetic with the other person’s ideas and desires
    • Principle 10: Appeal to the nobler motives
    • Principle 11: Dramatize your ideas
    • Principle 12: Throw down a challenge
  • Part 4: Be a Leader—How to Change People Without Giving Offense or Rousing Resentment
    • Principle 1: Begin with praise and honest appreciation
    • Principle 2: Call attention to people’s mistakes indirectly
    • Principle 3: Talk about your own mistakes before criticizing the other person
    • Principle 4: Ask questions instead of giving direct orders
    • Principle 5: Let the other person save face
    • Principle 6: Praise the slightest improvement and praise every improvement. Be “hearty in your approbation and lavish in your praise.”
    • Principle 7: Give the other person a fine reputation to live up to
    • Principle 8: Use encouragement. Make the fault seem easy to correct
    • Principle 9: Make the other person happy about doing the thing you suggest