Butterfly Design and many more - animals, florals, monogram initials, stacks of books. A book embosser, ex libris or book seal will emboss an owner's name with their unique design onto the book page or foil. From the library or classroom gift, This book belongs to and Ex Libris are common phrases for custom embossers. If you often lend your books to friends and family, an embossed design can serve as a gentle reminder to return it once finished, and they make wonderful gifts for book lovers of all ages. We sell several book embossers in a variety of designs, that you can customize with your own name/choice of text or graphic design.