The 65-year-old Olympic medalist revealed her new name and look on the June cover of Vanity Fair.
Famed photographer Annie Leibovitz shot Jenner in a white, bustier bodysuit and a black gown for the issue. The accompanying article by contributing editor Buzz Bissinger explores Jenner's transition from male to female.
"The last few days and doing this shoot was about my life and who I am as a person," she shared in the interview. "Bruce always had to tell a lie. He was always living that lie every day. He always had a secret from morning to night. Caitlyn doesn't have any secrets."
Jenner confirmed she is transgender in an interview with Diane Sawyer in April. The reality star will document her journey on an upcoming E! series, and joined Twitter as Caitlyn Jenner following the magazine reveal Monday.
"I'm so happy after such a long struggle to be living my true self," she wrote. "Welcome to the world Caitlyn. Can't wait for you to get to know her/me."
ESPN has announced that Jenner will receive the prestigious Arthur Ashe Courage Award at The ESPYS on July 15. The award is presented to those whose courage "transcends" sports, and the network says this particular award is to celebrate "Bruce becoming Caitlyn."
"In the past few months, the overwhelming outpouring of support from all over the world for my journey has been incredible," Jenner said in a statement. "However, being honored with this award, which is named after one of my heroes, is truly special. For the first time this July, I will be able to stand as my true self in front of my peers."
Jenner's former stepdaughter, Kim Kardashian, recently told Access Hollywood seeing the former Olympian as a woman was an "amazing" experience and "felt really natural." She and husband Kanye West announced they are expecting their second child over the weekend.