Slider is a popular design tool, which you can grab your visitors attention and can be really useful to organize your content. Slider can be a slideshow, a carousel, or a showcase. And sliders can be used all kind of websites. There are available a lot of slider plugins in WordPress, you can create classic slideshows from your images, video sliders, or carousel from your products. Usually you can meet with a fullwidth or fullpage slider as well and it can be used for a hero slider or header.