What's your preferred format of reading?

I love that there are different ways of reading: physical, digital and audio. But my preferred format is physical. I love holding a book and turning the pages. Although, I do have an E-Reader, I enjoy reading digital books occasionally. It's a great way to save on shelf space as well as the convenience of having a lot of books on one device so you don't have to carry around a lot of them. With that said I still really enjoy reading physical books.