A self-taught cartoonist and a voracious letter writer from a young age, Grauer used both talents to meet his idols and maintain lifelong relationships. He would draw caricatures of famous people and send them off in the mail, often receiving glowing letters of appreciation in return. Friendships, genuine friendships, grew from such encounters. The walls of his North Baltimore condo are covered with framed autographs, photos, cartoons, and letters of appreciation. Signatures and drawings of U.S. presidents from Barack Obama back to Herbert Hoover are clustered together. Nearby is Abraham Lincoln, whom, Grauer is quick to add, "I did not know." Politicians are only the beginning; another wall holds Woody Allen, Walter Cronkite, Stan Laurel, all the Marx Brothers, and all the Three Stooges (Grauer was 12 years old when he started his correspondence with Moe Howard, and maintained it until Howard's death in 1975). Next to them, legendary cartoonists: Walt Disney, whom Grauer met twice—first at the 1964 Worlds Fair, and in 1966 at Disney's studio—and Al Hirschfield. Grauer grew so close with Hirschfeld, he was invited to accompany him on a three-day train trip from Washington, D.C. to Los Angeles in 2001 to promote his book, "Hirschfeld's Hollywood."