Reddit reviews Stein On Writing: A Master Editor of Some of the Most Successful Writers of Our Century Shares His Craft Techniques and Strategies

• "On Writing," by Stephen King (http://amzn.com/B000FC0SIM) - The first half is a good biography, and the second half is great insight into how Stephen King comes up with his stories. Not just the genesis of the story, but that actual "I sit down and do this, with this, in this type of environment." And then what to do when you finish your first draft. He is very critical of plotting, though. If you disagree with him about that, it's still good for everything else.
  
  
• "The Elements of Style" by Strunk and White (http://amzn.com/020530902X) - This is a handy little book for proper grammatical and prose rules. How to write proper dialogue, where to put punctuation, and how to structure sentences to flow in an aesthetically pleasing manner.
  
  
• "Stein On Writing" by Sol Stein (http://amzn.com/B00HFUJP5Y) - I just picked this book up, so I haven't finished it--but it seems to be a little more in depth than Stephen King's On Writing. For instance, it looks more at not just what makes a good story, but what makes a good story appealing to readers. So whereas Stephen King preaches a more organic growth and editing process to write a story, this one seems to be more focused on how to take your idea and make it a good story based on proven structure.
  
  Honorable mention:
  
  
• "The Emotion Thesaurus" by Angela Ackerman (http://amzn.com/B00822WM2M) - This is incredibly useful when you're "showing" character emotions instead of "telling" the reader what those emotions are. For example, "He was curious," is telling the reader the character is curious. "He leaned forward, sliding his chair closer," is showing the reader that he is curious.
  
  
• I think it's easy for writers (myself included) to get too wrapped up in studying writing, or reading about writing. The best way to improve your is to write more, whether it's fiction or non-fiction, articles or short stories, novels or book reviews. The same principle applies to most skills, art especially. While reading about the activity certainly helps and is probably necessary at some point, you're going to just have to perform the activity in order to improve. Imagine reading about running more than actually running to practice for a marathon. Or reading about flying instead of getting hours in. Or reading about piano theory instead of actually playing piano. But if you're coming from nothing, it would probably help to read those three books before starting in order to start practicing with a good background right away, instead of starting with nothing and winging it on your own.

If you want more than two books:

Stein on Writing is fantastic for learning an editor's perspective

Invisible Ink (not sure what happened to the Kindle edition) is more about storytelling in general but it's fantastic at breaking down what makes good movies good

How Not to Write a Novel will crack you up