Great add-on. Easy to customise the appearance. Good support by the developer.
This block allows you to select an image, fill out a title, a text area, and a read more title, and displays them together in a block with rollover functionality. The functionality is simple, it shows the image with the title ontop, when you hover over the image the content paragraph and read more link is revealed. You don't have to use this block for links, it will show the same content and work without selecting a link.
Documentation is online at http://ob7dev.com/add-ons/image-link-with-content