Here is a list of copyright free digital books that can be read on a PC, Mac, and tablet.
When looking for electronic books or resources, please also consider visiting your public library in person or online. There are many services they provide, many of which have accessibility in mind (e.g. large text ebooks, audiobooks). In addition, Tumblebooks and the Peel BYOD websites have many electronic text options.
For assistance with accessing those websites, please click on this link: Libraries