“How to Win Friends and Influence People” is a self-help book written by Dale Carnegie and first published in 1936. The book has sold over 30 million copies worldwide and has been translated into many languages.

The book is based on Carnegie’s experiences teaching adult education courses in the 1930s. It teaches readers how to improve their communication and interpersonal skills, with the goal of achieving greater success in business and in their personal lives. The book is divided into four main sections: “Fundamental Techniques in Handling People,” “Six Ways to Make People Like You,” “How to Win People to Your Way of Thinking,” and “Be a Leader: How to Change People Without Giving Offense or Arousing Resentment.”

The book provides practical advice on how to build relationships and connect with others, including how to make a good first impression, how to ask questions that encourage people to talk, how to make others feel important, and how to deal with difficult people. It also provides guidance on how to think positive, avoid criticism and make others feel appreciated.

The book has been widely praised for its practical and actionable advice, and it continues to be popular today. It is often recommended as a must-read for people in business, sales, and leadership positions.