The 2015 Millennial Majority Workforce study reveals that millennials, defined as individuals born between 1982 and 1993, will become the majority in the U.S. workforce by 2015. The study highlights the challenges in hiring millennials, as 53% of hiring managers find it difficult to recruit them, while millennials express a desire for flexible working conditions and value mentorship and exciting work over salary. Additionally, the focus on hard skills in hiring is emphasized, with 55% of managers prioritizing skills over personality traits.