[mariaclaudia]

Hi guys:
I have a little question about the editor. In many places I download epub files, when I add them to my calibre library, I note that all of them have included tags in the book. However, I could not find the option to add tags to my own ebooks. How can I do it?

I hope I've explained well.
Sorry my grammar (I take a little help by google traductor)
Regards from Lima, Perú