Pictures, graphs, and video clips are common in marketing communication but are not appropriate in technical communication.

This statement is not entirely accurate. While it's true that marketing communication often utilizes pictures, graphs, and video clips to engage audiences and convey messages, these elements can also be very useful in technical communication.

Technical communication often involves complex concepts and detailed instructions, which can sometimes be difficult to understand when conveyed through text alone. Visual aids like pictures and graphs can help to clarify these concepts and instructions, making them easier for the audience to understand. For example, a graph can be used to illustrate trends in data, while a diagram can be used to show the components of a machine.

Video clips can also be useful in technical communication, particularly for demonstrating processes or procedures. For example, a video clip could be used to show how to assemble a piece of equipment, or how a particular software program works.

So, while the use of pictures, graphs, and video clips may differ between marketing communication and technical communication, they are certainly appropriate and often very useful in both fields.