Some ebook providers place limits on the number of people who can view or use an ebook at the same time. If you get a "busy" message or are asked to wait to read an ebook, this is the cause.
Any limits on the number of users will be noted in our OneSearch record for the book, right below the link for the full text, as shown here:
Here's a quick summary of user limitations on our largest providers of ebooks:
More than 150,000 ebooks for CSUSB users. No special software required! Read online or download limited portions as PDF files.
Access to a wide variety of scholarly journals, images, primary resources, and ebooks from university presses.