These are the Library of Congress call numbers for Communication. You can go to these letters on the library shelves and you will find the books about each subject area. (Ask at the Information Desk if you have trouble finding the sections.)
Communication P90 - P95
Communication in Management HD30 - HD66
Interpersonal Communication HM 132
Intercultural Communication HD38 - HD62; HM 258
Nonverbal Communication P94.6 - P117.7