No matter which type of product you’re documenting and no matter whether an image illustrates a concept or shows hardware or software: Many principles apply to all images alike.
Essentially, it’s all about making your images plain and simple. Users appreciate clear images. The facts are usually complicated enough.
Also, it’s important that your images are designed and structured consistently throughout the entire documentation. This adds even another layer of simplicity because once users get used to the basic design they can fully concentrate on the content in all subsequent images.
With images, follow these basic rules:
Also note the general rules of visualization, which apply as well. See:
For more specific information on particular image types, see: