All of our ebooks can be accessed through Discovery Search on our library homepage. You can search by keyword, title, author, or subject. Selecting "Books" in the results page will include both physical books and ebooks. Use Advanced Search for specific title or topic/subject, or limit to "Library Catalog". You can use the limiters on the left of the results screen to refine your search. Such as limit to Availability: Available online.
The majority of our ebooks come as PDFs, either by chapter or the whole book. You can download that PDF and use it forever without restriction.
Some ebooks can only be read online through the browser and offer no downloads.
Some ebooks are restricted in a way that limits the download period and the amount of simultaneous users. You'll have to go through extra steps to use these ebooks, such as creating an account on the provider's site and installing Adobe Digital Editions (a separate program from Adobe Reader).