Phil in SF commented on Mastering Genealogical Documentation by Thomas W. Jones
Or example 2:
The section on reference notes includes lots of rules for how to construct reference notes. The text does not include any examples of the individual rules applied to citations. The author realizes he needs examples, so he adds a perfunctory "Reference-note citations appear in footnotes throughout this books..." toward the end.
That's piss-poor textbook writing. You're telling students "here's all the rules, but go elsewhere to see how to apply them and connect them yourself."