Em X. Liu is not a widely recognized public figure within my knowledge base, which was last updated in early 2023. It is possible that Em X. Liu is a newer author or uses a pseudonym that hasn't gained broad notoriety or is known primarily within a specific community or literary circle. If Em X. Liu has gained prominence after my last update or if this is a pen name or a lesser-known individual within the writing world, I recommend checking current databases, literary websites, or social media platforms where authors commonly share their work for an accurate and up-to-date description of their work and background.