In addition to being able to access purchased ebooks via Blackboard or the MBS website, you can also download a copy of your ebook to a personal device to be able to read it off-line. VitalSource Bookshelf is the platform used for hosting the ebooks, and it is available as a free download or app for PCs, Macs, cell phones (iPhone and Android), Kindle Fires, and Chromebooks.
DO NOT download your ebook to a school lab computer or school laptop.
Visit the VitalSource Bookshelf Download Page for instructions to download the appropriate program/app for your device. There are links on this page to download the program for PCs and Macs. For other devices, there are links as appropriate to iTunes or the Google Play Store.