"Untitled (Book)" is a conceptual artwork created by artist Jasper Johns in 1961. The piece features a simple, unadorned book that is closed, inviting viewers to ponder the nature of art and the act of viewing itself. The work challenges traditional notions of what constitutes a book and art, emphasizing the importance of interpretation. By leaving the book untitled, Johns encourages an open dialogue about meaning and the viewer's role in creating it.