What is Marketing?

Marketing consists of a group of principles and practices that are carried out with the objective of raising commerce, especially the demand. The concept also makes reference to the study of procedures and resources that pursue such ends.

Marketing implies an analysis of the commercial management of companies. It's intention is to keep and build the loyalty of current customers, while new buyers are added.

The techniques and methodologies of marketing intend to give the necessary tools to conquer a market. For that to happen, they need to attend to the issues known as "The 4 P's":
- Product
- Price
- Place
- Promotion

Marketing pretends to place a product or a brand in the mind of the consumers. For that, it takes the client needs to design, execute and control the marketing activities of a company.

Marketing campaigns assume an investment in the relationship of the company with its clients, suppliers and even its own employees. Also they include publicity in the media. Therefore, marketing actions can be considered from a short and long term profitability viewpoint.

Specialists state that marketing may have different approaches:
- To the market - to adapt a product to the needs of a consumer.
- To sales - its intention is to raise the market share of a company.
- To the product - in cases in which the company already monopolizes the market and its attention just centers on improving the production process.

David your English is excellent. These are just a minor corrections/suggestions. I'm not in the business world so forgive me if I inadvertently changed the meaning of any of your sentences. 

Jaime