I showed an example from the last term. Students have many chances until July 19. We discussed why this is included. I indicated that this is probably related to possible problems and pointed out that the next item in the fax form is the name and telephone number of a contact person in the sending company. For example, they are not used so much for initial contacts but more as follow-ups and for urgent matters.
Time is money.
That is, they generally have From, To, Subject , and Date lines. Like in-house documents, they assume a level of familiarity. The Information Explosion Page 28 of Data Smog by David Shenk. By and large, over our long history, people have been able to examine and consider information about as quickly as it could be created and circulated. But in the mid-twentieth century this graceful synchrony was abruptly knocked off track with the introduction of computers, microwave transmissions, television, and satellites.