Synopsis Public relation is said to be effective when it influences the opinion of the public toward whom the message is directed and as a result the public is moved to consent and to act. It necessitates that for forming an opinion the public must be able to understand the message conveyed through communication media. If message is well received and understood, it results in favourable public opinion that helps in forming good public relations. What influences the public opinion? How public relations are created? What are different situations of public relations? Are questions that are looked into the present book. “Public Relations and Communication” present concepts, techniques and measurement of public opinion in the context of communication media at the outset and describes in detail the role of public opinion in public relations concerning business enterprise. In addition, the book makes elaborate presentation on internal and external public relations in education and propaganda and ethical considerations in public relations. Moreover, the book describes concepts and campaigns of public relations through examples of various types of business concerns, institutions, organizations and services. This unique presentation on the subject is a must for all students, teachers, politicians, business concerns, personnels and general public.