Written in 1936, this book presents a series of tips to win friends and influence people. A total of 30 rules. Carnegie describes examples of people and events to illustrate the rules. But they are not ordinary people, they are great characters, exceptional human beings, not ordinary. And they are from another culture, more developed, more educated. My opinion is that these rules or principles are not necessarily effective in the current period. Nor are they necessarily effective in all places. Theoretically read well. But people of that time and those places are not the same.