What is philematology?

Philematology is the study of kissing, what it means and its place in various cultures. It is the subject of a new book ‘A Compendium of Kisses’ by Lana Citron, an actress and stand-up comic. Citron talks descriptively about the light cheek-brushing to the French smooch to the ‘olfactory kiss’ or the rubbing of noses. The study includes observations by celebrities and how the kiss has metamorphosed from an expression of love to social style.