Erin Cotter might not be widely recognized unless we're referring to a specific person with published works or a notable presence in a particular field. Without more context or clarification, it is difficult to provide a short description of an author by this name. There are various individuals who might share the name Erin Cotter, some of whom could be authors, bloggers, or professionals in other industries. If you could provide more specific details about the individual you're referring to, such as the titles of their work or their area of expertise, I might be able to offer a more accurate description. Otherwise, please ensure that the name is correct or that the individual has a public presence that can be referenced.