Writing, writing, and more writing

I finally got back to doing some writing on my book. I knew when I
started that this would neither be easy nor quick to do. I am getting
some of the basic concepts put down in a somewhat coherent form. I keep
coming back and re-reading what I have written and adding a little here
or there, maybe rearranging some text to make it flow better. I have
like 9 documents started on various topics which will eventually be
melded together into chapters of the book.