Tip
If you are using a Kobo device and reading books purchased from the Kobo Store or reading kepub files converted via Calibre, you should download KF_Readerly.zip, which has fonts slightly altered for optimal kerning for the kepub renderer.
Learn more
Readerly is part of the ebook-fonts collection. For more information about those fonts, screenshots and how to install them, please consult the README. The FAQ also includes an entry on how to enable ligatures on Kobo devices, which is highly recommended.