An audience is a group of people who consume media. There are two types of media: passive consumption (Media 1.0) and interactive consumption (Media 2.0). Audiences are important because without them, there would be no profit from media productions. There are mass audiences of large, similar groups and niche audiences of smaller, unique groups. Socio-economic classifications categorize audiences based on occupation from high (A) to low (E). Target audiences are identified based on factors like age, gender, interests to effectively engage specific demographics.