No. The Library selects, preserves, and provides access to data from a wide range of sources, including the U.S. government, nonprofits, research institutions, and commercial entities. If you are interested in finding more sources of U.S. government data, you might consider searching data.gov or browsing through the Dataset Repositories section of this guide.
Many of the datasets are available for immediate download, but there are scenarios that keep the Library from providing download access. There are several reasons why a particular dataset may not be downloadable from loc.gov, including:
Yes! This guide is a useful resource for people new to computational analysis and data-driven research. Additionally, the LC Labs team is dedicated to encouraging innovative use of the Library's digital collection materials. Check out their LC for Robots page for APIs, datasets, tutorials, and example projects that can help familiarize you with the basics of performing computational analysis on datasets.
No. The Library selectively acquires fixed data output. Essentially, this means that a dataset in the Library's collection will not be modified, deleted, or replaced once a newer version is acquired. All previous versions will remain in the digital repository alongside the most up-to-date copy.
That said, you are welcome to contact a relevant reference librarian to discuss the possibility of adding your data to the collection.
The primary method for recommending a dataset for selection is to reach out via Ask a Librarian, an online reference service. The service will help put you in touch with a reference librarian in the appropriate Library division (e.g., Science, Technology & Business, Music, Geography & Map). The dataset will be assessed for potential inclusion and, if the Library decides to acquire the content, the reference librarian will collaborate on the acquisitions process with staff from the Digital Content Management section and the Acquisitions and Bibliographic Access Directorate.
Possibly! Feel free to contact a reference librarian through Ask a Librarian that works in the related Library division. They will be able to discuss the matter in greater depth.
Not necessarily. The Digital Content Management section works with reference librarians to determine the frequency with which the Library will collect new versions of a dataset. In some instances, the Library will collect every version of a dataset that is produced and made available; however, in many situations it is simply not feasible for the Library to collect at this granular level, particularly if the activity results in significant amounts of duplicated content.