An electronic book (variously, e-book, ebook, digital book) is a book-length publication in digital form, consisting of text, images, or both, and produced on, published through, and readable on computers or other electronic devices.

English is a West Germanic language that was first spoken in early medieval England and is now a global lingua franca. 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

News writing style is the prose style used for news reporting in media such as newspapers, radio and television. News style encompasses not only vocabulary and sentence structure, but also the way in which stories present the information in terms of relative importance, tone, and intended audience.

Copywriting is the use of words and ideas to promote a person, business, opinion or idea. wikipedia.org

Search engine optimization (SEO) is the process of improving the visibility of a website or a web page in search engines via the "natural" or un-paid ("organic" or "algorithmic") search results. wikipedia.org

A ghostwriter is a professional writer who is paid to write books, articles, stories, reports, or other texts that are officially credited to another person. 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 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

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

Article spinning is a search engine optimization technique by which blog or website owners post a unique version of relevant content on their sites. It works by rewriting existing articles, or parts of articles, and replacing elements to provide a slightly different perspective on the topic. wikipedia.org

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