The Author’s Toolkit by Mary Embree, third edition, published by Allworth Press.
I strongly recommend this book for anyone starting the process of writing a fiction or nonfiction book. The book organization is very good. The writing is also very good. It covers almost all the bases one needs to get started. I did not read it from cover to cover at first but I have pretty much completed the book by jumping around to parts that I needed at the time. The only criticism is the author fails to include a review of possible writing software. I had to find on my own about Scrivener which I strongly recommend for you to consider.