Marissa Mayer is a renowned American businesswoman and former CEO of Yahoo. Born on May 30, 1975, in Wausau, Wisconsin, Mayer holds a Bachelor's degree in Symbolic Systems and a Master's degree in Computer Science from Stanford University. She joined Google in 1999 as their 20th employee and played a key role in developing many of their popular products. In 2012, Mayer became the CEO of Yahoo and focused on reviving the struggling company through acquisitions and revamping its products. Mayer is known for her innovative leadership style and dedication to advancing technology.