Berkeley Heights Public Library offers ebooks:

 eLibraryNJ: Over 18,000 e-books, including new books and bestsellers.  Some books have waiting lists.  Get the easy-to-use Libby app or the Overdrive app to read the ebooks on a tablet or phone. The Libby app also lets you transfer your ebook to a Kindle e-reader. See Overdrive Help for more information.

Hoopla: Over 5,000 e-books and e-comics that are always available – no waitlists. Get the Hoopla app to read them on a tablet or phone, or read them online. Instructions are at Hoopla Help.