https://techcrunch.com/2018/09/20/amazon-introduces-apl-a-new-design-language-for-building-alexa-skills-for-devices-with-screens/

Along with the launch of the all-new Echo Show, the Alexa-powered device with a screen, Amazon also introduced a new design language for developers who want to build voice skills that include multimedia experiences. Called Alexa Presentation Language, or APL, developers will be able to build voice-based apps that also include things like images, graphics, slideshows, and video, and easily customize them for different device types – including not only the Echo Show, but other Alexa-enabled devices like Fire TV, Fire Tablet, and the small screen of the Alexa alarm clock, the Echo Spot.

In addition, third-party devices with screens will be able to take advantage of APL through the Alexa Smart Screen and TV Device SDK, arriving in the months ahead.