Project Gutenberg provides a huge selection of e-books in French. These can be read online or downloaded in a number of different formats for different e-book readers. The library primarily contains older works, so you should check whether they are suitable for your learning.

Use this archive's extensive collection of French texts to train your reading skills. The texts are available in HTML format to read online or to be downloaded to your computer.

This site presents a number of French books and translations of other literary classics. The texts can generally be read online or downloaded in a variety of different formats.

With over 2600 French books available to read online or download, the LogosLibrary presents an extensive and diverse way to learn French. The detailed search function allows you to find exactly what you're looking for.