Apple Books
Use Apple Books to read and organize your library of books, and to purchase new books on your Mac.
Note: Apple Books is not available in all countries or regions.
A bookshelf right on your Mac. Browse or search all the items in your library—or click Book Store to find new books and other publications. To buy, just sign in with your Apple ID (choose Store > Sign in).
Ask Siri. Say something like: “Find books by Jane Austen.”
Never lose your place or your markups. Your purchased books, collections, highlights, notes, bookmarks, and the current page are available automatically on your Mac and iOS devices, if you’re signed in on them with the same Apple ID.
Find your way back. You can quickly go to pages you’ve bookmarked. Click the arrow next to 
to view your list of bookmarks.
Tip: Change to Night theme to read more easily in low-light situations. Choose View > Theme, then choose Night. Or click the Fonts button 
, then click the black circle. Not all books support Night theme.
Learn more. See the Books User Guide.