1) The files have been properly formatted. Paragraphing has be justified.
2) Pages properly numbered.
3) Chapter started adjusted,
4) Proofs at the conclusion of the book.
5) Photos at the conclusion of the book.
6) Supplementary information adjusted.
7) Copyright properly formatted.
8) Any other errors corrected.
Because of the adjustments it added page numbers and the extras affected the "cost" of the book. So the price had to be adjusted. But the adjustments make it will worth it.