A bookplate, also known as ex-librīs, is a printed or decorative label pasted into a book, often on the front endpaper, to indicate ownership. Simple typographical bookplates are termed "book labels".

What does the Latin phrase ex libris mean?

History and Etymology for ex libris

New Latin, from the books; used before the owner's name on bookplates.

What should I write on ex libris?

from the library of (a phrase inscribed in or on a book before the name of the owner): Ex libris Jane Doe.