Hi Ron
You use sections when you want to split a single document into multiple sections.
You use the Book feature to manage chapters of a book, and you aren’t required to use sections.
It seems you are frustrated by your lack of understanding on how to best utilise the program (no offence intended at all as I was once as you are now, making mistakes like this can be costly)
With the Book Feature you can manage many things for example if you have 20 chapters names like Chapter 1 all the way to Chapter 20.
With the book feature you can have automatic numbering applied to insert a Chapter no.
For instance you could have your Book Panel look like this
Alphabet
Consonants
Vowels
Numbers
And Alphabet file might start off something like “CHAPTER 1: ALPHABET”
Next file Consonants starts off with “CHAPTER 2: VOWELS”
And so on
Imagine you have 20 chapters. And someone says hey I want Chapter 15 to go first.
That means that you move the file name that is chapter 15 to the top of the pile in the Book Panel.
Now you have
<Chapter 15>
Alphabet
Consonants
Vowels
Numbers
<more chapters>
You’d have to open Alphabet and change it to “CHAPTER 2: ALPHABET” and open Consonants and change that to CHAPTER 3: CONSONANTS and so on for 20 chapters.
With the Book Panel, you can arrange your files. Within your files you can include things like a Chapter Number marker – which when you move Chapter 15 or any chapter all the numbers automatically update across all documents.
So Alphabet automatically can change to Chapter 2
Or if someone wanted Alphabet to come last in the book – move it to the bottom of the file arrangement in the Book Panel and the text in the file will change to “CHAPTER 20: ALPHABET”
And the rest of the Chapters can automatically renumber themselves.
This is just one small example of how the Book Panel is useful.
The most imporatnat thing about the Book feature in InDesign is that once the files are in a book they can be dynamically linked to create TOCs, Indexes, numbered lists, synchronise styles and lots of other features.