Clamshell Cases (or Solander Box) are the absolute best option when it comes to protecting and preserving valuable books*. The unique design allows the book to be isolated from all light, air, and dust. In addition, because of their book like design, they are aesthetically pleasing on any bookshelf. By utilizing such materials as book cloth, leather, and marbled papers, these cases can be customized to be as simple or extravagant as your library requires.