Writing about Writing

It is interesting to me, how many books there really are out there on the craft of writing.
Why so many? Does the world really need a dozen books just on writing dialogue?

Why do writers write about writing when they could be writing something else?
Are they writing to help other writers?
Do they think they know something about writing that no one else does?

I don't claim to know everything about writing. This blog isn't about writing anyway. It is about elements outside of the actual writing.

Famous authors even took time from their normal books to pen a book about writing. If they didn't pen a book about writing, their author website often offers personal tips about writing.

From resources on the Internet to never-ending books on the craft, it is easy for any aspiring author to be overwhelmed by information about writing. Myself included. Some authors agree on technique while other aspects of writing are greatly disagreed, including basic rules on grammar.

One common aspect I found is that no writer says they have a secret formula.

I believe it takes talent, burning desire, and some luck to get your book to the world. Having a unique personality and understanding how to market yourself can help you tremendously.

As a writer, you can spend more time on the publishing aspect of getting your book sold and marketing your book than actually writing it.

Writers:
What tips/tricks do you have on the craft of writing?