If you're interested in writing (short stories or otherwise) here are a few key texts you should pick up to help guide you.
Bird by Bird by 
On Writing: A Memoir of the Craft by 
The Way of the Writer: Reflections on the Art and Craft of Storytelling by 
Steering the Craft by 
Negotiating with the Dead by 
Object Lessons by 
Morphologies: Short Story Writers on Short Story Writers by 
How to Write Like Tolstoy by 
Beyond the First Draft: The Art of Fiction by 
The Writer's Voice by 
Scratch: Writers, Money, and the Art of Making a Living by 
The Art of X-Ray Reading: How the Secrets of 25 Great Works of Literature Will Improve Your Writing by 
How to Write a Sentence by 
The Elements of Style by 
The Sense of Style by 
Spunk and Bite by 
Vivid and Continuous: Essays and Exercises for Writing Fiction by 