You need to communicate a long series of complex instructions including videos few important steps large audience. Which genre would be most appropriate for this writing task?

Given the need to communicate a long series of complex instructions, including videos and emphasizing a few key steps, for a large audience, the most appropriate genre would be a tutorial.

Here's why:

* Focus on Instructions: Tutorials are specifically designed to guide audiences through a process, providing clear and concise steps.

* Visual Aids: The inclusion of videos in a tutorial is standard, allowing for visual demonstration of complex steps.

* Key Steps Emphasis: Tutorials often highlight crucial steps, making it easier for the audience to grasp the most important elements.

* Large Audience Accessibility: Tutorials are typically formatted in a way that caters to a broad audience, ensuring clarity and comprehensibility.

While other genres like "manuals" or "how-to guides" might also be relevant, a tutorial's emphasis on visual learning and key step identification makes it particularly well-suited for this task.