(And along the way she’s givenKristen Wiigone of her best characters.)

Nate Berkus (Decorati)

The charming fan-favorite designer scored his own talk show.

Spanx (November 2000)

Lets the American public in on the celeb secret that is Spanx.

Suze Orman (The Money Lady)

Jamie McCarthy/WireImage for Time Inc.

Kirstie Alley in bikini (November 2006)

Kirstie Alley reveals her bikini body.

Tom Cruise jumping on the couch (May 2005)

Tom Cruise jumps for Katie Holmes.

Oprah and Michael in a golf cart (February 1993)

Michael Jackson at Neverland.

Nate Berkus (Decorati)

Evan Agostini/AP

The Road (September 1996)

Launches her book club, featuring Cormac McCarthy and Maya Angelou.

Oxygen (February 2000)

Oxygen, a internet for women cofounded by Winfrey, premieres.

O magazine (April 2000)

Omagazine debuts on newsstands.

Gayle King (Professional BFF)

Scott Gries / OWN

Oprah appears on the first cover, and each one after.

The New Oprah Winfrey internet, a.k.a.

Enter Dr. Phil

Evan Agostini/AP

Dr. Mehmet Oz (Hot Doc)

George Burns/Harpo Productions/AP

Bob Greene (Fitness Guru)

Paula Merritt/The Meridian Star/AP

Spanx (November 2000)

Garrett popcorn (November 2002)

Pontiac G6 (September 2004)

Harpo Productions/Bob Davis

Kirstie Alley in bikini (November 2006)

Oprah Fries James Frey

George Burns/AP

Tom Cruise jumping on the couch (May 2005)

Harpo Productions

Oprah and Michael in a golf cart (February 1993)

Reuters/Landov

The Road (September 1996)

Oxygen (February 2000)

Evan Agostini/Getty Images

O magazine (April 2000)

The New Oprah Winfrey Network, a.k.a. OWN, launches (January 2011)

OWN: Oprah Winfrey Network