An essay is a piece of writing which is often written from an author's personal point of view. Essays can consist of a number of elements, including: literary criticism, political manifestos, learned arguments, observations of daily life, recollections, and reflections of the author. wikipedia.org

A blog is a personal journal published on the World Wide Web consisting of discrete entries ("posts") typically displayed in reverse chronological order so the most recent post appears first. wikipedia.org

The pharmaceutical industry discovers, develops, produces, and markets drugs or pharmaceutical drugs for use as medications. wikipedia.org

Professional writing involves the use of clear language to convey information in a way that is easily understood by the intended audience. Individuals who can use language well may be employed as full-time professional writers in a variety of communications-related occupations, such as wikipedia.org

An article is a written work published in a print or electronic medium. It may be for the purpose of propagating the news, research results, academic analysis or debate. wikipedia.org

A research paper is an academic work that is usually published in an academic journal. It contains original research results or reviews existing results. wikipedia.org

Writing is a medium of communication that represents language through the inscription of signs and symbols. wikipedia.org

SEO content is any content created with the goal of attracting search engine traffic. wikipedia.org