One of my favorites lately has been Annie Dillard. Honestly, I think she is simply fantastic. She writes a lot of memoir based pieces. Memoirs are what I enjoy writing the most, and so I am very interested in both the genre and in what she has to say. Her imagery is beautiful and her purpose is clear, poignant and thought-provoking. If you're looking for a good short story to pick up and read in just five or so minutes, I would definitely recommend Transfiguration, also known as the moth essay, a truly beautiful piece of hers that talks about writing by way of a very cool and captivating metaphor.