An author's purpose is reflected in the way he writes about a topic. For instance, if his purpose is to amuse, he will use jokes or anecdotes in his writing. Clues to an author's purpose may be found in titles, prefaces, and the author's background.
<span>Another word for "platform" that would fit this concept would be "app" or "tool." These words would give the connotation of something that has utility and can be used for a positive end.</span>
