Ex Libris is a Latin phrase which translates to "from the library of". It is a commonly used term to denote ownership or origin of a book. However, there are a number of alternative terms which can also be used to achieve the same purpose. Some of the synonyms for Ex Libris include "bookplate", "personal library stamp", "book owner label", "library marking" or simply "private collection". These terms can also be tailored to include the name or initials of the book owner, making it even more personal and unique. Regardless of the term used, they all serve the same purpose of identifying the owner of the book and their personal collection.