Why Do Books Smell?The chemical breakdown, o... Why Do Books Smell? The chemical breakdown, over a period of time, of the compounds within paper produce the smell. Paper consists of cellulose and small amounts of lignin (a complex polymer of aromatic alcohols). Lignin is the same chemical that makes the color of old paper yellow, as it becomes oxidized over a long period of time to break down into acids, which in turn break down to cellulose....more on our facebook By @karin_chemistry #mybenznote #carbonote #books #paper #celulose #chemistry #organic #biochemistry #science #skills #reaction #students #school #summer #futuremedstudent #futurechemicalengineer #future #medstudent #medlife #easy #wonderful #instapic #bookstagram A post shared by benznote (@benznote) on Sep 17, 2017 at 3:06pm PDT