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Firms in the advertising and public relations services industry prepare advertisements for other companies and organizations and design campaigns to promote the interests and image of their clients. All organizations today rely on computer and information technology to conduct business and operate more efficiently.

The employment services industry provides a variety of human resources services to businesses. These services include providing temporary workers to other businesses, helping employers locate suitable employees, and providing human resources services to clients.

Management, scientific, and technical consulting firms influence how businesses, governments, and institutions make decisions. From carbon nanotubes to vaccines, workers in the scientific research and development services industry create today the technologies that will change the way people live and work in the future. [ Source - Career Guide to Industries ]