Standard Ebooks is a great place to download free content - Good e-Reader

Many people download free royalty free ebooks from Project Gutenberg. It is the largest site in the world for this type of content and offers downloads in EPUB and MOBI for Kindles. One of the best alternatives is Standard Ebooks who reformats ebooks from PG and edits them, adjusts the typesetting, add better cover art and metadata. The Standard Ebooks project is a volunteer driven, not-for-profit effort to produce a collection of high quality, carefully formatted, accessible, open source, and free public domain ebooks that meet or exceed the quality of commercially produced ebooks. The text and cover art in

Standard Ebooks: Free and liberated ebooks, carefully produced for the true book lover.

Standard Ebooks Makes Classic Texts Beautiful - TidBITS

Kindle Description Meet Kindle, now with an upgraded high-resolution display, 2x the storage, USB-C charging, and longer battery life. The built-in adjustable front light, and the newly added dark mode feature, lets you read comfortably indoors and outdoors any time of the day. Enjoy sharper text and images. The upgraded 300 ppi high-resolution glare-free display features more than 3x as many pixels as the previous generation.