Conducting a Mail Order Business
The pattern
This still is filed under Craft-argument book.
Define
A book or manual that sells a method by arguing it. Chapters as proof, not as decoration around a product.
Mechanism
Authority by treatise. The reader who accepts the argument has already accepted the seller as teacher.
Verdict
We can teach a craft in public and the teaching is the funnel.
Why it works
The running heads are the real design decision. By setting each one as a command rather than a page title, Bull turns a continuous text into a skimmable checklist, so a reader thumbing the block picks up the rule without reading the argument. The teaching method is the fully worked fictitious case: rather than stating a principle about list building he invents a publisher, walks through the card index entry by entry, annotates each past title with a follow-up decision, then runs the keyed advertisements and the free booklet in sequence, which shows the reader the order of operations instead of the doctrine. The reason-why chapter tests advertisements by a deliberately awkward instruction, judge only the ones whose subject you do not care about, which strips subject interest out of the reader's own judgment.
Steal this when
Copy this when you are teaching a process rather than arguing a case, and the reader needs to be able to act from a skim. The worked invented case, one buyer, one product, one campaign traced from list to letter, is the right structure whenever the real client work cannot be named.