No matter where someone is on your site, they should know that they're on your site and nobody else's.  The buzzword is "branding". One of the central elements of your brand is your logo.  Well-designed pages are easier to read, and lead your readers' eyes where you want them to be led. A good overall design has the following three traits:

• It has unity and variety.
• It supports but does not overpower the message.
• It is appropriate to the particular message being conveyed.

In short your website reflects you and your business and needs the great Diverse Access web design touch to establish yourself on the Internet.