The following provides an overview of the typical components of a printed technical book and the typical content, format, style, and sequence of those components. Certainly, no single user guide, technical reference manual, quick-reference document, or other such document would actually have all of these components designed and sequenced in precisely the way you are about to read. Instead, this review will give an overview of the possibilities—let's say the range of possibilities. Before you begin reading the following, grab a number of hardware and software books so that you can compare their content, style, format, and sequencing to what is discussed here.
McMurray, David, "16. Book Design Overview" (2016). Sexy Technical Communications. 16.