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Lessons from the C-suite: 7 Fortune 500 CEOs reveal their secrets to success

Story highlights

  • This week on Leading Women, we talk to Deanna Mulligan, CEO of insurance giant Guardian Life Insurance Company of America
  • At the helm of a Fortune 500 company, she tells CNN about her successes
  • Take a look at words of wisdom from other female CEOs including Ursula Burns and Marissa Mayer

As the CEO of Guardian Life Insurance, Deanna Mulligan has joined a small but powerful group of female business executives on the Fortune 500 list.

She talks to "Leading Women" about life at the helm of the 150-year-old insurance giant and how opportunities for female professionals are growing day by day.

With women only holding 4.2% of Fortune 500 CEO positions, CNN takes a look at the pearls of wisdom shared by some of the world's leading businesswomen on getting to the top -- and staying there.

    Leading Women

  • CNN set out on a hunt to find the women who excelled in their professions this year and we found some of the most inspiring women of 2014.
  • Jane Fraser is often cited as one of the most powerful women in banking. She tells CNN's Poppy Harlow how women lead differently.
  • Women's-only private members clubs are becoming more popular, offering spaces to work, socialize and relax, albeit with hefty membership fees.
  • NASA'S chief scientist, Dr Ellen Stofan.

    NASA's chief scientist Dr Ellen Stofan wants to land humans on Mars by 2035, but there are some serious challenges to overcome before then.
  • The cast of TV show Dynasty.

    The Design Museum hosts a power dressing exhibition, from Joan of Arc's short tunics, to Joan Collins' eye-gouging shoulder pads.