This is final installation in Ad Age's award-winning series, The Real "Mad Men" Diaries, and it's fitting that we end on a giant: David Ogilvy.

From his red suspenders to his abundant charm, Mr. Ogilvy was the quintessential Mad Man. But unlike Don Draper or even Peggy Olsen, Mr. Ogilvy was first and foremost a print guy.

Ken Roman, the former Ogilvy & Mather CEO who literally wrote the book on David Ogilvy -- "The King of Madison Avenue: David Ogilvy and the Making of Modern Advertising" -- says the legendary adman had a distinctive flair for drama. But as a creative, he was very practical, a defender of research and a champion of the client.

"He was a pretty good creative guy at a time at a period in the '50s and the '60s when the business had changed and he couldn't change with it," recalls Mr. Roman. "But what he did, more than any other person, he was an institution builder."