This paper on the subject of smell in communication provides a brief survey of the subject, pulling together a wide variety of disparate ideas across many disciplines. The paper is comprised of a general introductory section and separate sections on the olfactory nonverbal communication of animals and human beings. The uses to which animals put the production and reception of odors are grouped under the following categories: safety and protection, travel, mating, food gathering, and territorial marking. The section on the olfactory aspect of nonverbal communication in human beings is divided into three areas of purpose: safety; realism; and personal, encompassing intrapersonal, interpersonal, and intragroup aspects. (MKM)