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E-readers have quickly become a preferred method for readers since they can hold hundreds of books in one device. And many e-readers now have features that let you take notes or highlight passages in your book, avoid glare from the sun when reading outside, and read at night with a backlight.

I reached out to published authors for their take on what the best e-readers are for reading or annotating books. Here's what they said.

Perhaps the most popular e-reader on the market today is Amazon's Kindle, thanks to its easy-to-use interface and the widest selection of books in its library.