How to Win Friends and Influence People

Dale Carnegie's 1936 classic — updated in 2022 by his daughter Donna Dale Carnegie — is built from fifteen years of lectures, thousands of adult students, and Carnegie's own research into how history's effective leaders dealt with people. He interviewed Edison, Marconi, Franklin D. Roosevelt, Joan Crawford, and hundreds of others. The book's organizing claim is that 15% of financial success comes from technical knowledge; 85% comes from skill in human engineering — dealing with people. That figure, from a Carnegie Foundation study confirmed by MIT, was the original provocation for the whole project.

The book is structured around 30 named principles across four parts. Each principle is argued through historical examples, student testimonials, and Carnegie's own experiences. No abstract theory; everything is stories.

Part One: Fundamental Techniques in Handling People

Principle 1: Don't criticize, condemn, or complain. Carnegie's opening argument is not that criticism is unkind — it's that it doesn't work. Humans universally believe they are right and justified, even Al Capone and "Two Gun" Crowley. B. F. Skinner proved that reward produces faster, more durable learning than punishment. Hans Selye: "As much as we thirst for approval, we dread condemnation." Lincoln's unsent letter to General Meade after Gettysburg — written, then pocketed — is the exemplar: correct, justified, and certain to accomplish nothing. → criticism-is-futile

Principle 2: Give honest and sincere appreciation. The deepest human hunger, after food, is the desire to feel important and appreciated. This hunger is chronically unmet. The chapter distinguishes sharply between sincere appreciation (specific, real, from observation) and flattery (generic, self-serving, instantly detected). Charles Schwab was paid a million dollars a year largely because he was "hearty in approbation and lavish in praise." → give-honest-and-sincere-appreciation, desire-to-feel-important

Principle 3: Arouse in the other person an eager want. The only way to influence anyone is to talk about what they want. Henry Ford: "If there is any one secret of success, it lies in the ability to get the other person's point of view." Carnegie's ballroom negotiation, Barbara Anderson's letter to twelve banks, Stan Novak getting his son excited about kindergarten — all demonstrate the same technique: before speaking, ask "how can I make this person want to do it?" → arouse-an-eager-want

Part Two: Six Ways to Make People Like You

Principle 4: Become genuinely interested in other people. The ratio: more friends in two months through genuine interest than in two years trying to get people interested in you. Alfred Adler: all human failures spring from those not interested in their fellow men. Howard Thurston the magician — "I love my audience" said sincerely before every show, contrasting with magicians who thought "suckers." Theodore Roosevelt remembered every servant's name and called out to them as he passed. Knaphle's fuel sale — two hours of genuine interest beat ten years of resentful pushing. Sincere interest is a two-way street: "We are interested in others when they are interested in us." (Publilius Syrus) → genuine-interest-in-others

Principle 5: Smile. Charles Schwab said his smile was worth a million dollars. A real smile — not mechanical — communicates "I like you. You make me happy." An insincere grin fools no one and creates resentment. Professor McConnell (U of Michigan): people who smile manage, teach, and sell more effectively. Smile even on the phone — it comes through in your voice. William James: action and feeling go together; force the smile and the feeling follows. William Steinhardt, stockbroker, barely smiled in 18 years of marriage; tried smiling for one week and reported it "literally revolutionized my life." Chinese proverb: "A person without a smiling face must not open a shop." → smile

Principle 6: Remember that a person's name is to that person the sweetest and most important sound in any language. Jim Farley could call 50,000 people by first name; that ability helped put FDR in the White House. Andrew Carnegie named a Pittsburgh steel mill "Edgar Thomson Steel Works" to win a railroad contract, and proposed "Pullman Palace Car Company" in a merger negotiation — Pullman's face brightened immediately. Napoleon III's technique: if you don't hear it, ask; repeat it; write it down; associate it with features. Nicodemus Papadoulos wept when Sid Levy used his full name — "In fifteen years, nobody has made the effort." → remembering-names

Principle 7: Be a good listener. Encourage others to talk about themselves. Carnegie was called "most interesting conversationalist" though he barely spoke — he listened to a botanist and a woman who'd been to Africa. Freud's manner: mild, concentrated attention that made people feel they'd never been listened to like that. Lincoln invited an old friend to Washington not for advice but for a sympathetic ear. New York Telephone's cantankerous customer paid all bills after 4 sessions with a troubleshooter who simply listened. Detmer Woolen's angry retailer placed his largest order ever after Detmer thanked him for coming and let him talk himself out. "To be interesting, be interested." → active-listening

Principle 8: Talk in terms of the other person's interests. Roosevelt read up on every visitor's interests the night before. Edward Chalif got 5 scouts sent to Europe plus $1,000 by asking first about the executive's famous million-dollar check. Duvernoy broke a 4-year bread-selling deadlock by talking about the hotel manager's passion for Hotel Greeters of America. Edward Harriman got an inaccessible business maverick to hire him by opening: "I believe I can make money for you." → talk-in-terms-of-interests

Principle 9: Make the other person feel important — and do it sincerely. "Always make the other person feel important" — the one all-important law of human conduct. Post office clerk story: a sincere compliment on the man's hair sent him walking on air all day. The philosophical convergence: Zoroaster, Confucius, Lao Tzu, Buddha, Jesus all taught the same rule. The sincere constraint: find what you can honestly admire, then say it. → make-others-feel-important

Part Three: 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. Winning an argument means the other person walks away humiliated and resentful. "A man convinced against his will / Is of the same opinion still." Patrick O'Haire became White Motor's star salesman by agreeing with competitors instead of fighting. The 8-step protocol from Bits and Pieces: welcome disagreement, distrust first instincts, control temper, listen first, look for areas of agreement, be honest, postpone action. → avoid-argument

Principle 2: Show respect for the other person's opinions. Never say, "You're wrong." Telling someone they're wrong triggers hardening, not agreement — Robinson (The Mind in the Making): "It is obviously not the ideas themselves that are dear to us, but our self-esteem which is threatened." Ben Franklin reformed himself after a Quaker friend's rebuke; for 50 years afterward no one heard a dogmatic expression from him. Magic phrase: "I may be wrong. I frequently am. Let's examine the facts." → never-say-youre-wrong

Principle 3: If you are wrong, admit it quickly and emphatically. Beat the critic to it. Carnegie and Rex the dog: admitting guilt to the mounted policeman produced mercy instead of a fine. Ferdinand Warren's art director: self-condemnation disarmed a hostile critic and earned lunch plus a commission. Bruce Harvey: repeated "It was my fault" to his boss until the boss accepted it and moved on. → admit-mistakes

Principle 4: Begin in a friendly way. "A drop of honey catches more flies than a gallon of gall." Lincoln's formulation: first convince him you are his sincere friend — that is the great high road to reason. Robert F. Black (White Motor Company) praised striking workers, bought them baseball equipment — strike ended in a week without ill feeling. O.L. Straub's landlord: friendliness yielded a rent reduction the landlord offered himself. → begin-friendly

Principle 5: Get the other person saying "Yes, yes" immediately. Don't begin with differences — begin with agreement. "No" sets the entire organism into rejection mode; "Yes" keeps it open. James Eberson (Greenwich Savings Bank): reframed every question around customer's interests until the reluctant man opened a trust account. Joseph Allison (Westinghouse): walked a hostile chief engineer to $35,000 of business through pure Yes-Yes questioning. Socrates built an empire of persuasion on this method alone. Chinese proverb: "He who treads softly goes far." → yes-yes-technique

Principle 6: Let the other person do a great deal of the talking. People can't be "sold" — you have to let them buy. G.B.R. lost his voice at a $1.6M contract meeting; the president talked for him and awarded the contract. Joseph Webb let Mrs. Druckenbrod talk herself into buying electricity via pride in her chickens. Barbara Wilson's daughter Laurie only opened up when her mother stopped lecturing and asked one quiet question. La Rochefoucauld: "If you want friends, let your friends excel you." → let-them-talk

Principle 7: Let the other person feel that the idea is his or hers. Ideas you discover for yourself have far more staying power than ideas handed to you. Adolph Seltz asked his salespeople what they expected from him, then what he could expect from them — they made a moral bargain and exceeded it. Eugene Wesson stopped trying to sell sketches and asked the buyer to tell him how to finish them — 150 failures became a loyal client. Roosevelt as New York governor let political bosses take credit for appointments he had engineered. Colonel House planted ideas in Woodrow Wilson's mind so gently that Wilson later trotted them out as his own. → let-them-feel-its-their-idea

Principle 8: Try honestly to see things from the other person's point of view. "There is a reason why the other person thinks and acts as they do. Ferret out that reason — and you have the key to their actions." Sam Douglas learned more about his wife by joining her to pull weeds than years of criticism. Elizabeth Novak defused a threatening debt collector by apologizing sincerely and listening to his troubles — he offered favorable terms without being asked. Dean Donham (Harvard Business School): "I would rather walk the sidewalk in front of a person's office for two hours than step into that office without a perfectly clear idea of what that person — from my knowledge of his interests and motives — was likely to answer." → see-their-point-of-view

Principle 9: Be sympathetic with the other person's ideas and desires. The magic phrase: "I don't blame you one iota for feeling as you do. If I were you, I would undoubtedly feel just as you do." Three-fourths of people hunger for sympathy. Carnegie/Mayflower descendant — geography error on radio broadcast; instead of fighting back, he sympathized with her viewpoint and called her; she became warm and apologetic. President Taft's drawer technique: write the furious letter, lock it for two days, then write a sympathetic one instead. Jay Mangum/Tulsa hotel escalator — eight hours vs. two, won by sympathizing with manager's concern for guests. Sol Hurok/Feodor Chaliapin — "dripping with sympathy" got the temperamental basso on stage every time. Dr. Arthur Gates (Educational Psychology): "Sympathy the human species universally craves." → offer-sympathy

Principle 10: Appeal to the nobler motives. J. Pierpont Morgan: every person has two reasons for doing a thing — one that sounds good and a real one. Appeal to the nobler one. Hamilton J. Farrell/disgruntled tenant — "we are either men or monkeys"; tenant paid rent and stayed. Lord Northcliffe stopped unwanted photo by writing "My mother doesn't like it." Rockefeller stopped photographers by appealing to not harming children. Cyrus Curtis got Louisa May Alcott to write by sending payment to her charity. James L. Thomas/"uncollectible" auto accounts — five steps of listening, sympathy, and fair-play appeal; 5 of 6 paid favorably, all 6 bought new cars within two years. → appeal-nobler-motives

Principle 11: Dramatize your ideas. Merely stating a truth isn't enough — it must be made vivid, interesting, dramatic. Philadelphia Evening Bulletin published all one day's content as book One Day (307 pages) to prove their news content. Rat poison manufacturer's live-rat window display → 5x sales. NCR's speechless convention — all training via sketches and plays. Jim Yeamans threw pennies on grocer's floor. Mary Catherine Wolf's self-addressed appointment form letter got immediate boss access. James B. Boynton opened 32 competitor cold cream jars on executive's desk — same facts that had caused argument now drew an hour of engaged conversation. → dramatize-your-ideas

Principle 12: Throw down a challenge. The desire to excel — throwing down the gauntlet — an infallible way of appealing to people of spirit. Charles Schwab/lagging mill — chalked "6" on floor; night shift replaced with "7"; day shift left "10"; worst mill became best mill. Theodore Roosevelt/Thomas Collier Platt: "Is the hero of San Juan Hill a coward?" → Roosevelt stayed in the fight and became president. Al Smith/Lewis E. Lawes/Sing Sing: "It'll take a big person to go up there and stay" → Lawes became most famous warden of his time. Firestone: "I think it was the game itself." Frederick Herzberg: most motivating factor is the work itself — the desire to excel, the chance to prove worth. → throw-down-challenge

Part Four: Be a Leader — How to Change People Without Giving Offense or Arousing Resentment

Principle 1: Begin with praise and honest appreciation. A barber lathers before shaving. McKinley redirected a campaign speechwriter by praising the speech before indicating it wouldn't do — the man rewrote it and became one of the most effective writers of the campaign. Lincoln's letter to General Hooker (April 26, 1863): praised Hooker's courage, confidence, and skill before noting grave faults diplomatically. W.P. Gaw/Wark Company: praised unique name, toured factory admiringly, complimented machines — subcontractor promised delivery without being asked. Dorothy Wrublewski: praised teller trainee's friendliness and accuracy before suggesting they review balancing together. → begin-with-praise

Principle 2: Call attention to people's mistakes indirectly. The word "but" poisons praise — it signals that everything before it was sugarcoating. Schwab/smoking employees: gave each a cigar and said "I'll appreciate it, boys, if you will smoke these on the outside" — they admired him because he said nothing about the broken rule. Wanamaker: quietly went behind the counter and served the customer himself rather than criticize inattentive salespeople. Lyman Abbott's wife: praised the sermon as an excellent article for the North American Review — Abbott tore up the manuscript and preached without notes. → indirect-criticism

Principle 3: Talk about your own mistakes before criticizing the other person. Carnegie/niece Josephine: "You have made a mistake, Josephine, but the Lord knows it's no worse than many I have made." Prince von Bülow/Kaiser Wilhelm II: von Bülow's error was not beginning by admitting his own shortcomings; he recovered by praising the Kaiser's superiority in natural science and military knowledge. Admitting one's own mistakes — even uncorrected ones — helps convince somebody to change. → own-mistakes-first

Principle 4: Ask questions instead of giving direct orders. Owen D. Young (RCA founder) never gave a direct order in three years — always "You might consider this" or "Do you think that would work?" Dan Santarelli's instructor: screamed at parking student, entire class resentful. Ian Macdonald/Johannesburg precision parts: instead of ordering people to rush, asked "Is there anything we can do to handle this order?" — employees came up with ideas and insisted on taking the order; delivered on time. → ask-instead-of-order

Principle 5: Let the other person save face. GE/Charles Steinmetz: removed him as department head by giving him a new prestigious title — "Consulting Engineer of the General Electric Company." Marshall Granger/seasonal accountants: let them go with genuine praise for specific good work — they returned with personal affection when needed. Dwight Morrow: great arbitrator — always found what was right on both sides, praised it, and never placed anyone in the wrong. Saint-Exupéry: "Hurting a man in his dignity is a crime." → let-save-face

Principle 6: Praise the slightest improvement and praise every improvement. Be "hearty in your approbation and lavish in your praise." Pete Barlow's dog training. One editor's praise changed Charles Dickens's life. A peasant mother's praise created Enrico Caruso. A schoolmaster's praise created H.G. Wells. Skinner: when criticism is minimized and praise emphasized, good things reinforce and poor things atrophy. Keith Roper/printer: specifically pointed out how his work was superior → complete attitude turnabout. William James: "He possesses powers of various sorts that he habitually fails to use." → praise-every-improvement

Principle 7: Give the other person a fine reputation to live up to. "Give a dog a bad name and you may as well shoot him." Shakespeare: "Assume a virtue, if you have it not." Mrs. Ruth Hopkins/"Terrible Tommy" — "I understand you are a natural leader. I'm going to depend on you to help me make this class the best." Exchange Buffet honor-system restaurants — 50 years, no watch, customers always paid. Henry Henke/mechanic Bill: "Because you have been such an outstanding mechanic in the past, I felt sure you would want to know that I am not happy with this situation." Dr. Fitzhugh/cleaning man Martin: praise note → shiniest cup holders ever. → give-fine-reputation

Principle 8: Use encouragement. Make the fault seem easy to correct. Two dancing teachers: first said "you're all wrong, start over" → student quit; second said "your fundamentals are fine, you have a natural sense of rhythm" → student stayed and improved. Lowell Thomas/Carnegie/bridge: "There is nothing to bridge except memory and judgment" — Carnegie sat down and played for the first time. Ely Culbertson: wife/bridge teacher told him he was a potential genius at cards → he made a profession of it. Clarence Jones/son David: flashcard stopwatch system with celebrations at each improvement; brain-injured kid who couldn't multiply → national honor society. → make-fault-seem-easy

Principle 9: Make the other person happy about doing the thing you suggest. Colonel House/Bryan: told him he was too important to go as peace emissary officially — Bryan was satisfied. Woodrow Wilson/McAdoo: extended cabinet invitation so McAdoo felt he was "doing Wilson a favor" by accepting. Doubleday Page: so gracious at rejections that O. Henry felt better when refused than when another publisher accepted. Dale Ferrier/son Jeff/pears: "$1 per basket, but I'll subtract $1 for every pear I find left" → Jeff picked them all. Gunter Schmidt/employee/price tags: gave him title "Supervisor of Price Tag Posting for the entire store" → attitude changed completely. Napoleon: "Men are ruled by toys." → make-them-glad

Ingest status: Full. All four parts and all 30 principles read and integrated.

Worth noting: Carnegie wrote the book, as he says, "for myself as much as for others." He kept a "Damn Fool Things I've Done" file to remind himself of his own violations of these principles. The book is not a description of how its author naturally behaved — it's a hard-won discipline.