You can import all supported file formats using iTunes.
Start by plugging your device to your computer and launching iTunes, then switch to the device view and switch to the Apps-tab.
At the lower left corner of iTunes, you should be able to see a list of applications. Find Flash Reader and select it.
Now you can drag and drop files on the right side of iTunes. When you’re done, simply press the Synchronize button and the files will be transferred in to the app.
Below you’ll also find a screenshot that should help you find the right place.
PLEASE NOTE: Only DRM-free (no copy protection) books can be imported, as it is illegal for us to remove the protection.
Transferring files from iTunes: