Probably the most important aspect of any website is its usability. If the website has an odd or unclear navigation with misleading tabs, the user will get frustrated and leave the site. A horrible thing to have happen when you want people to explore your site. Looking at my own website I feel the simple navigation, clear titles, and eye catching colors will help people easily navigate. The top, centered navigation remains in the same place teaching users where they can look for information.
The other important tip from these two authors was to use white space. Not necessarily white, though in my case it is, but just having negative space to give the eyes a break and allow further emphasis on important material. Each of my pages have nothing but the most important information; a simple navigation, logo, image or two, and footer. Using color and size I create a simple hierarchy that is easily interpreted through the white space.