An ebook reader is a device that allows you to read and purchase electronic books or ebooks. These devices typically have an LCD screen, which displays text in much the same way as traditional paper books do. E-readers are designed specifically for reading digital content, with features such as adjustable font sizes, built-in lighting, and long battery life that make them ideal for extended periods of reading. Some popular ebook readers include Amazon's Kindle, Barnes & Noble's Nook, and the Kobo from Rakuten. These devices allow users to purchase and download books directly onto their device, making it easy to carry a vast library in one compact package.