The Divi theme makes it super easy to add a full width slider to your WordPress pages.
In this video from Divi Nation Mak expains how to use CSS to make the images the button! What yes by applying this CSS to the module the button becomes the size of the full image and disappears leaving your beautiful image that is clickable as a link with no visable button! How does it get any better than this?
Below the video you will find the full CSS code required for this hack.