You need to add narration to a PowerPoint slideshow but you don’t know where to start.

This 1 minute, video is a great, simple introduction:

Then, if you need more information or would like to take a deeper dive, this page is a great resource:

https://support.office.com/en-us/article/record-a-slide-show-with-narration-and-slide-timings-0b9502c6-5f6c-40ae-b1e7-e47d8741161c