Now that Bookshare is offering their books in an epub format, you can now download and read their books in iBooks on both MacOS and iOS.
How to Read Bookshare Matterial in iBooks
iBooks on macOS
Download EPUB
1. Log in to your Bookshare account.
2. Search for a book using the search box at the top of the page.
3. After finding the book in the search results, select EPUB from the download format drop-down menu, then select the Download button.
4. You’ll then be taken to your My History page. Select the Available or Downloaded link next to the status of the book to save it to your computer.