An advertising agency is an independent business that develops and places advertising campaigns for clients. The agency's functions include researching the target market, planning advertising strategies, creating campaign creative content, selecting appropriate media, and managing the advertising budget. Within an agency there are departments focused on account management, creative work, media planning, production, and research. Advertising agencies can be full-service agencies that handle all aspects of a campaign, specialist agencies focused on specific industries or functions, creative boutiques focused on design work, or in-house agencies working for a single company. The goal of any advertising agency is to positively represent its clients to customers through effective advertising.