First, you write the book. You might be happy, or not... If you are not happy, keep re-writing it until you are satisfied, or too tired to keep going.

It's not time to edit the book. Someone else will do that for you, right? You will both discuss the results and if you are happy, go forward.

Now it's time to proofread. Do it right, but don't do it forever... Sometimes, a fresh pair of eyes can make a big diference.

If the book is ready, i.e., no more editings, changes and proofreads, it's time to give it to the Graphic Designer, to do the book layout and cover design. 

In parallel, you can request an ISBN number and do the copyright if you think it's important.

With the design complete, you can apply for CIP (Catalogue in Publication).

You can start marketing your book at the same time.

Once you applied for CIP and got it, your graphic designer can add this information to the book and you can send it to be printed and bound.

Finally, you can start selling your book.