One interesting tidbit, linguistically speaking, is that very few words exist for smells while multitudes abound for other senses. The only one I can think of in English is "petrichor," the smell of the ground after a rain. A good companion piece to this one may be: https://www.theatlantic.com/science/archive/2015/11/the-voca...
This can't be complete without a mention of Patrick Süskind's novel The Perfume, a book that "explores the sense of smell and its relationship with the emotional meaning that scents may have" (Wikipedia)
