The answer to the title above seems simple enough ... just tell the graphic designer.
However, when it comes down to it, it can be pretty difficult to describe to a graphic designer what you're picturing in your head. And, it's next to impossible when you really aren't sure what you want from your website redesign.
We've found that web site redesign projects are far more successful from the standpoint of customer satisfaction when the client provides a significant amount of detail about what they want. They don't have to draw it out for us. Rather, all we're looking for is a pretty good indication of their design preferences, which we then can use to create a unique design for them.
To help our clients communicate those preferences, we've created a list of design questions with sample sites. Check out the 20 questions to ask before starting your website redesign.