The rise and fall of Marissa Mayer, the once-beloved CEO of Yahoo

AP Photo/Lionel Cironneau

Marissa Mayer, CEO of Yahoo

Hopes were high when Marissa Mayer was first hired as Yahoo CEO in 2012. People thought she would turn around the perennially dysfunctional internet giant.

But three years in and Mayer's time at Yahoo has been marred by slowing growth and internal dissent, leading to plummeting employee morale.

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Now, some Yahoo investors are demanding a change in management, including a replacement for Mayer.

We went through a bunch of recent news stories and Nicholas Carlson's book, "Marissa Mayer and the Fight to Save Yahoo!", to put together the story of Mayer's epic rise to become one of the biggest Silicon Valley power players - and her sudden fall.