Okay...this is for anyone who scours the bookshelves looking for books on writing. I've read them all and there is only ONE that ever really spoke to me...
If You Want to Write by Barbara Ueland.
This is  ano-nonsense book by a crusty octogenarian (now deceased) who even writes at one point, "If you really wanted to be writing, you'd put this book down and go do it."
I fell in love with her then.
No pompous rhetorica about reading the classics.
No jocularity about alcohol consumption.
Nothing extraneous other than how to think and act like a writer and how to write for yourself.
It's a small book and you can finish it in a weekend.

Linda Kay gives it two thumbs up!

Let me know how it goes.