Page Selector View
Thumbs view will show pages as image thumbs. It is useful if you are using a 'one-page-for-one-image' strategy.
Lister view will display saved pages in a ProcessWire Lister table that includes columns to show various properties about the pages (such as fields, parents, template, etc). This is best for when you are using Visual Page Selector as a normal but enhanced page field.
Please note that Thumbs view will require that you specify the name of at least one valid image field in the Image Fields setting. The Image Field option will only be visible once you have saved the field.
We will look at each view above in more depth in later sub-sections.