This document introduces key concepts about audience, distinguishing between vital audience elements ("GAPS") and other elements to consider. It discusses demographic factors like gender, age, social class that can help categorize audiences. Mainstream versus niche audiences and stereotypes are covered. The concept of a mass audience that appeals to all quadrants is introduced, as well as genre and intertextuality. The document then discusses Dennis McQuail's uses and gratifications theory for why audiences choose certain media. Short examples are provided on analyzing audience based on CD covers, discussing gender, age and target audiences.