Kindle is undoubtedly one of the most popular and affordable e-reader brands ... including EPUB, PDF, XPS, PDB, TXT, HTML, RTF, CHM, DOC, MOBI, ZIP files, and more. The app also lets you sync ...

Learn more Amazon and Kobo (owned by Rakuten) are two of the biggest names in the e-reader market with their respective device lines. Amazon offers three unique models of Kindles: Kindle (from $90 ...