How to upload a book?

Prepare your metadata, epub, and cover files! Click 'Add book' and 'Add book from epub'. Just drag and drop the epub and the cover, fill in the metadata and save. Once you have revised your files and metadata, you can send them to stores with one click.

For further help, check this video or the following article: https://publishdrive.com/publish-a-book-in-publishdrive/