If you think this reference is helpful check out the live Genesis Visual Hook guide. Hover over sections for more information about the hook or default functions and even tutorials. It’s more of a complete developers guide/index of genesis.
With the release of Genesis by Studiopress, the use of hooks were introduced to their themes. Hooks are a useful piece of code that allow you to “hook” into a theme without modifying core theme files. With the ability to place code in given spots throughout a theme allows simple upgrading without having to go back through all your template files to re-add your custom code.
A look into the available hooks for Genesis in their place: