Hello @LisaRonenet775
Happy to help! You can use whatever suits you best as long as you have a video with audio on all your lectures, your course needs at least 5 lectures and a minimum of 30 minutes of video and audio in total. With that said, you can use a PPT and audio, you can use a video of yourself or you can use a PPT and a taking head on the side. You can choose whatever format suits you best.
Hope this helped. Let us know if you have any further questions.
kindest regards,
Leonor
Udemy moderation team
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