A marketing manager is a person within a company who supervises and helps create the various advertising or merchandising sales campaigns the business uses to sell itself and its products. A marketing manager can be assigned to a single product, a product line, a brand, or the entire company. The manager typically must incorporate a variety of input from creative, research, advertising, and sales teams.A marketing manager typically oversees one or more marketing campaigns. The manager may devise the entirety of the campaign. However, he or she will typically see a generalized opportunity and then enlist various members of his or her marketing team to brainstorm campaign ideas. Normally, a marketing campaign will also require market research to determine the various product appeal to various demographic groups.One of the key skills a marketing manager must possess is organization. Even small changes or iterations on existing marketing campaigns can require a great deal of coordination and timing precision. Marketing managers typically must orchestrate that across multiple groups and teams within the company. Most marketing managers will be required to have a marketing degree from a university, with management disciplines and postgraduate work favored. Marketing managers typically work regular hours during the work week, but they should expect to put in longer days when launching new campaigns.