Media planning is generally outsourced to a media agency and entails sourcing and selecting optimal media platforms for a client's brand or product to use. wikipedia.org

Digital marketing is an umbrella term for the marketing of products or services using digital technologies, mainly on the Internet, but also including mobile phones, display advertising, and any other digital medium. wikipedia.org

Media Buying, a sub function of advertising management, is the procurement of media real estate at optimal placement and price. The main task of media buying lies within the negotiation of price and placement to ensure the best possible value can be secured. wikipedia.org

Marketing strategy is a process that can allow an organization to concentrate its limited resources on the greatest opportunities to increase sales and achieve a sustainable competitive advantage. wikipedia.org

Advertising is a form of communication used to encourage or persuade an audience (viewers, readers or listeners) to continue or take some new action. wikipedia.org

Digital media is any media that is encoded in a machine-readable format. wikipedia.org

Proofreading (also proof-reading) is the reading of a galley proof or computer monitor to detect and correct production-errors of text or art. Proofreaders are expected to be consistently accurate by default because they occupy the last stage of typographic production before publication. wikipedia.org

Translation is the communication of the meaning of a source-language text by means of an equivalent target-language text. wikipedia.org