David Ogilvy wrote Ogilvy on Advertising in 1983, when advertising was measured in coupons clipped from magazines. Forty years later, most of his advice works better on Google than it did on paper.

Before running one of the largest agencies in the world, he sold cooking stoves door to door. Ogilvy came from direct sales and never stopped thinking like a salesman: to him, an ad was worth what it sold.

That idea now has tools he would have envied. Every click and every inquiry can be measured. Rereading the book with that in mind changes how it reads: Ogilvy was doing branding and performance at the same time, long before those words existed.

What Ogilvy said and Google confirmed

Research before you write

Before writing an ad, you need to study the product, look at what the competition is doing and listen to the exact words customers use. In the 80s that took months of surveys and focus groups.

Today those words are in Google's Keyword Planner, with the search volume for each one. The advice is the same. What changed is that now it takes an afternoon.

The headline does almost all the work

Five times as many people read the headline as read the body copy. With that in mind, Ogilvy asked for headlines that promised a clear benefit and avoided wordplay. If the headline fails, the ad loses almost all of its chance to sell.

Online, that ratio is even more extreme. A Google Ads headline has 30 characters, and a search result is decided in a second. An email's subject line decides whether it gets opened. That's where clever headlines lose to the ones that tell readers what they gain.

Write to one person

Every ad is read alone, even when millions of people see it. That's why Ogilvy recommended writing in the second person singular, with short paragraphs, everyday words and concrete proof to earn credibility.

A phone is the most solitary reading there is. Today's proof is Google reviews, case studies with real names and numbers anyone can check. A line like "we're the leaders" convinces very few people.

Brand image changes the taste

The same whisky tastes different when the person drinking it is told it's expensive. Ogilvy used that test to show that the brand changes how the product is experienced.

Today the label on the bottle is the website. Two companies can offer the same service, and the customer will perceive more quality in the one with a polished site, good reviews and a consistent image everywhere it shows up. That perception also shapes how much they're willing to pay.

Measure every ad

Mail order was the only advertising that knew exactly which ad was selling. Ogilvy defended it for that reason, and asked to analyze the performance of every piece and to set the budget according to the goal and the audience.

Google and Meta Ads with conversion tracking are the mail order of our time. Every headline can be tested against another, and every dollar spent can be traced to the inquiry it generated.

An idea that lasts

"A big idea surprises you the first time, fits the strategy and could run for 30 years." That was Ogilvy's yardstick, and he also warned that most campaigns of his time were far too complicated.

Today's platforms recommend changing ads every week, but a clear idea sustained over time is still what makes a brand memorable.

What stayed in the 80s

Some parts of the book carry the mark of their time. Ogilvy was thinking about television and print, and several recommendations answer to those formats.

  • Typefaces. He recommended Century, Caslon and Baskerville, designed for paper. On screen, what matters is readability on a phone, and each brand has to test that.
  • The three-page letter. The day after a meeting, he sent the prospective client a letter with the reasons to choose his agency. Today that letter works better as a five-line email with a one-page proposal attached.
  • The copywriter at the center. To Ogilvy, the copywriter was the most important person in the agency. Today copy shares the center with data, because a good headline is chosen by writing several and letting the results decide.

There's one warning that aged in reverse and carries more weight today than in 1983. Ogilvy said short-term advertising doesn't transform a business, and that most campaigns are launched without follow-up. Today's platforms reward this week's results. A brand that only optimizes for today's click ends up competing on price alone.

How we read it at GEO360

When we read the book, we underlined fewer of the copywriting tips and more of what Ogilvy said about how an agency should work. Several of those ideas are now part of how we work.

Creativity with method

Some agencies chase creative prestige, others impress with their technique and others win clients at any cost. Ogilvy suggested choosing one of those paths before writing the first ad. We chose the crossroads of the first two: ideas with personality, backed by data and measurement.

A small agency can think big

Creativity has little to do with the size of the agency, and Ogilvy summed it up by saying that small can be beautiful. A small team has a concrete advantage: the person who plans and runs the campaign is the same person who talks to the client.

One brand per industry

Before hiring an agency, it's worth finding out who else it works for. Ogilvy advised this because an agency that serves your competitor is in an awkward position. We made it a rule: when we work with a company, we don't take on its direct competitor as a client.

Speak clearly, decide together

An agency should tell the client what it would do in their place, without imposing anything, because it's their product and their money. That advice from Ogilvy is the basis of every recommendation we make. He also advised choosing clients you have an affinity with. That's why, before we start working together, we take the time to get to know each other.

What a company can take away today

The book's most enduring lesson is that brand and sales work together. Ogilvy took care of each product's image and, at the same time, measured how much each ad sold.

For a company that invests in advertising, that translates into concrete questions. Does the ad's headline promise something the customer wants, and does the website back it up with the same image? Do you know which ad brought in each inquiry?

The best way to win clients is to make good advertising. Forty years after Ogilvy's book, that line is still our best sales strategy.

By Hernán Touzón