If your site is category driven, creating navigation tabs for each category is a good way to drive readers to the specific categories they want to read.
My lifestyle design blog has a number of category links in the navigation bar. The default navigation bar, above the header, has a tab for the “Goal Projects” category, along with all its subcategories. In addition, I have added a secondary navigation bar below the header (a technique I’ll document in a later tutorial) that includes all a navigation tab for all the major categories used on the site. The process of adding a tabbed category link in the default navigation bar is a fairly simple process with the Thesis theme.
After you have created your WordPress categories, go to your dashboard and navigate to Thesis>Site Options>Navigation Menu>Categories. Then just select those you want included and save.
Yes, it’s that simple.
Note that if you include a category with subcategories, any subcategories you select will show up as drop down submenu items. For example, see the Goal Projects category with it’s associated specific subcategory projects.