An ex libris is a graphic representation. Its main characteristic is that of depicting the ownership of a book.
The most common type of ex libris are those with the name of the person and the latin word ex-libris (which means "the book belonging to"). The drawing or graphic representation must be related to the owner’s personality, which may be either a person or an entity.
The most prized technique used for making an ex-libris is engraving. The design or etching is done in the matrix which is supported by a wooden or linocut plate (xylography) or by a copper or metal plate (chalcography), etc. The engraving is printed on paper when it becomes just one piece. After that, a series of numbered copies are made. It can also be made into a tampon print so it can be used in booksleeves.