“ Note that sections should be merged into the upper level if they are short enough. For example, the individual sections in Chapter 37 are on the Chapter 37 page.
Suggestion: for organizational purposes, might a simpler structure (Title/Chapter/Section) suffice? Not all the Titles are divided into Parts, and where they are, the names given to those levels of organization vary (some are labeled “Parts,” others are “Subtitles”; sometimes they are numbered with uppercase Roman numerals, other times with capital letters) and they share few common features from one Title to the next. ”