 The curvilinear letters are rope- or thread-like, with loops and even knots, and are somewhat reminiscent of Sinhala script.In a talk at the Oxford University Society of Bibliophiles on 11 May 2009, Serafini stated that there is no meaning behind the "Codex"'s script, which is asemic; that his experience in writing it was similar to automatic writing; and that what he wanted his alphabet to convey was the sensation children feel with books they cannot yet understand, although they see that the writing makes sense for adults.However, the book's page-numbering system was decoded by Allan C. Wechsler and Bulgarian linguist Ivan Derzhanski, and is a variation of base 21.