There are many ways to download an e-book: 1. Buy from e-book stores: If you like a book, you can buy it from e-book stores such as Amazon's Amazon, Apple's iBooks, and Google's Google Play Books. Use online readers: Some websites provide free online readers such as Net Nanny, Open Library, and Project Gutenberg. You can use these websites to download e-books. 3. export local files: Some e-books can be imported as local files. You can choose this option in the reader and save it to the local disk. 4. Use third-party software: Some third-party software can manage e-books such as Ebooker, Ebookmaker, and Bookie. These programs can create, edit, and import e-books. No matter which method you choose, you should ensure that the downloaded e-book is legal and can be sold and downloaded in the designated e-book store.