Abstract：Libraries on metaversedo they existPurpose This paper aims to explore the existence of Metaverse or 3D virtual libraries and how they use Metaverse to expand library servicesDesignmethodologyapproach The authors use literature to search projects and research papers that discuss the metaverse libraryThey also did observations on metaverse librariesFindings There are some virtual realities or metaverse platforms that a library or virtual community can use to build their 3D virtual worldSome libraries already create a virtual world library or metaverse libraryHoweverthose initiatives are still in the prototype stage and are used for exhibitions and projectsOriginalityvalue This paper overviews and builds a simple understanding of the metaverse libraryThe value of the paper is giving motivation when building the metaverse libraryThis initiative shows that big hi-tech companies do not dominate MetaverseConsulting ServiceFor exampleproviding information literacy serviceseducationconsultationetcin the virtual worldRetrieval and IndexingProvide more accurate and personalized search experiences with AILibrary AutomationAutomatization of certain services and functions in a virtual environmentThe article mentioned that the library needs to have information technical skills when building MetaResesuch as enhanced technologyimmersive technologymachine learning and artificial intelligenceThe machine learning and artificial intelligence here are the category of AIand the specific AI applications and categories may be used to enhance interaction and experience in the virtual world