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Jessie Ball duPont Library

Electronic Books

A guide to finding, accessing, and citing eBooks.

Ebook Access Levels

The Library provides access to many different kinds of ebooks with different access models. When a single title has multiple possible options available, the Library always purchases the most permissive license available. Note to faculty: If you want to use Library ebooks for a course textbook or supplemental readings, it's important to know the number of simultaneous users that each ebook allows, to make sure students have adequate access to the books.

Examples of ebook access levels:

  • Unlimited simultaneous users        No limits to the number of users at any one time
  • Non-‌linear lending or concurrent users     200-325 uses per year with unlimited simultaneous users up to that point. After the available uses are exhausted, the book is no longer available until the annual license period renews (in other words, the book will be available next year.)
  • 3 users                 Only three users can access the book at a time.
  • 1 user                Only one user can access the book at a time.

 

Unlimited Access Level Ebook Collections

Books from the following collections have unlimited simultaneous users:

JSTOR
ABC-Clio
ACLS Humanities E-Book Collection
Business Expert Press
Cambridge University Press (Cambridge Core)
Credo Reference
Gale Ebooks
Loeb Classical Library
Manchester Medieval Sources online
Oxford Reference Online, Oxford Handbooks, Oxford Scholarship Online
Project Muse
Salem Press
SpringerLink
Wiley

OverDrive Ebooks

All OverDrive books and audiobooks only allow one user at a time to "check out" the book. The checkout period is 14 days. Users can return books early but they have to actively choose this option when they are finished with the book.

EBSCOhost Ebook Collection-- Varying user levels-- How to know

Books in the EBSCOhost Ebook Collection can have unlimited, 3-user, or 1-user access levels, depending on what the publisher allowed when we purchased the book. To find out how many users a particular book allows, use the link in the catalog or the link you were provided with by the librarian to go to the ebook page on the EBSCOhost Ebooks platform. (Log in using OpenAthens if prompted.)  The user access and publisher permissions for use are at the bottom of the information screen about that book. See the examples below.

An EBSCO ebook is considered to be checked out or in use when a user is viewing the ebook online or has downloaded the ebook to view offline. If the ebook is viewed online it will return to the library once the session ends. An ebook can be downloaded for a maximum of 3 days, so it will return to the library at the end of that period if downloaded. We cannot determine whether the user is viewing the ebook online or downloaded to view offline.
 

Example 1:Unlimited Access

 

 

Example 2: Single User Access

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Example 3: Concurrent Access

 

 

Proquest Ebook Central - Varying user levels - How to know

Books in Proquest Ebook Central can have unlimited, 3-user, or 1-user access levels, depending on what the publisher allowed when we purchased the book. To find out how many users a particular book allows, use the link in the catalog or the link you were provided with by the librarian to go to the ebook page on the Proquest Ebook Central platform. (Log in using OpenAthens if prompted.)  The user access and publisher permissions for use are at the top of the information screen about that book. See examples below.   NOTE: Proquest only indicates whether we have single access or multiple access; it doesn't say how many users for the multiple access. If you want to use a Proquest book for a course, the librarian can find out exactly how many users we have.

Example 1: Single user access

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Example 2: Multiple user access

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