B. Fletcher is not a widely recognized name in literature, and without additional context, it is difficult to provide a description of this author. The name could refer to any number of individuals in various fields, as it is a common name and the initial "B" doesn't give much information. "B. Fletcher" could be an author of academic papers, books, articles, or even a pen name used by an author. If you can provide more specific information about the works authored by B. Fletcher or their field of expertise, I could offer a more precise description. Otherwise, please verify the full name or notable works of the author for a more accurate response.