Each Branch library is arranged according the the Library of Congress Classification system. Once you know the general area where books on your topic are kept, it can be very effective to browse the shelves. How to read a call number
BV 653-657 Mass media and telecommunication in religion
H 61.8-61.9 Communication of information. computer networks
HD 30.3 Organizational communication, Internet
HM 1206-1220 Communication Mass Media
HM 1221-1226 Public Relations, Publicity
HM 1231 Propaganda
HM 1236 Public Opinion
JA 85 Communication in politics
Opposing Viewpoints is a User-friendly book series the Library owns that present opposite viewpoints on a wide variety of topics ranging from controversial issues (e.g. abortion, gay rights, etc.)
To find these books search using the advanced keyword search with "opposing viewpoints" as well as the topic.