What is the smell of old books?
What is the smell of old books? A common smell of old books, says the International League for Antiquarian Booksellers, is a hint of vanilla: “Lignin, which is present in all wood-based paper, is closely related to vanillin. As it breaks down, the lignin grants old books that faint vanilla scent.” What is the smell of books called? Hexanal, also from the disintegration of cellulose and lignin in paper, can give books an earthy, musty, “old room” smell, which could be exacerbated by mold from environmental exposure. Smell, however, is not simply a matter of isolating and naming molecules. What...