This study aims to shed light on the data visualization services (DVS) provided online by the academic libraries of world-class universities. Thirty library websites from the top 100 universities listed in the QS World University Rankings 2021 were selected for this study. The university library websites were examined and were visited many times for gathering data. The results obtained showed that DVS can be divided into five aspects: information, services, training, tools and software, and information resources. Most libraries (93.3%) offered data visualization tools and software such as Tableau, R, Excel, Gephi, and Plotly. Twenty-six libraries (86.67%) provided information resources related to data visualization such as textbooks, data sources, external links to e-resources, and blogs. Moreover, 80% of the libraries offered DVS to the university community through their webpages. The findings of this study can help academic libraries improve DVS and draw the attention of libraries worldwide toward providing DVS in the future.

本研究旨在阐明世界一流大学学术图书馆在线提供的数据可视化服务 (DVS)。本研究选择了 2021 年 QS 世界大学排名前 100 所大学的 30 个图书馆网站。对大学图书馆网站进行了检查并多次访问以收集数据。得到的结果表明，DVS可以分为五个方面：信息、服务、培训、工具和软件、信息资源。大多数图书馆 (93.3%) 提供数据可视化工具和软件，例如 Tableau、R、Excel、Gephi 和 Plotly。26家图书馆（86.67%）提供教材、数据源、电子资源外链、博客等与数据可视化相关的信息资源。而且，80% 的图书馆通过他们的网页向大学社区提供 DVS。本研究的结果可以帮助高校图书馆改进 DVS，并引起全球图书馆对未来提供 DVS 的关注。