If you want to be a writer but don't know how to go about it, you should buy this book. It is one of the most helpful books I have ever read.
It is challenging to read because there is so much to take in, I would advise reading only one chapter at a time. I would also advise to underline parts that really speak to you because you will want to re-read them for inspiration when you are finished.
It is both practical and inspiring, I had a notion of creative writing before I read this book but it made it a reality. By the time you have finished reading it you will realise that all there is left to do is to write.