The document discusses how LinkedIn's algorithm prioritizes posts with hashtags, engagement, and timely interactions, highlighting that using 3 hashtags is optimal while oversharing can negatively impact visibility. Comments are favored over likes and shares for boosting engagement, and new connections and pages have an initial visibility boost if engaged with promptly. Additionally, a higher LinkedIn social selling index (SSI) correlates with increased reach, emphasizing the importance of quality content and consistent interaction on the platform.