You currently cannot change the author or title in Stanza Desktop itself. The only way to do it is to export the book as plain text, edit the text file to add headers that read "Title: My Title" and "Author: My Author".
However, if you are syncing to Stanza iPhone, as of version 1.1 (released today), you can change the title and author in Stanza itself by clicking the gear icon in the book reading view.
You currently cannot change
You currently cannot change the author or title in Stanza Desktop itself. The only way to do it is to export the book as plain text, edit the text file to add headers that read "Title: My Title" and "Author: My Author".
However, if you are syncing to Stanza iPhone, as of version 1.1 (released today), you can change the title and author in Stanza itself by clicking the gear icon in the book reading view.