The document discusses how slideshows are often ineffective and frustrating for users on websites. It provides evidence from usability tests and analytics that show slideshows are usually ignored by users and do not improve engagement. While some slideshows can be done well, the document recommends alternatives like static text, images, and grids that are easier for users and better for the website. It only considers using a slideshow if truly necessary and provides tips to improve slideshows like clear navigation and only loading necessary content.