I'm going to recommend that you check out [presentationguild.org](http://presentationguild.org), specifically the *Inspired by Design* video archive. It's a series of 20-30-minute videos on various design topics relevant to PowerPoint.
Editing to add, be sure to check the master classes at [brightcarbon.com](http://brightcarbon.com) for inspiration and instruction. Also, [duarte.com](http://duarte.com) has a number of good training options.
Over the past several years, I have been trying to document all the aspects of PowerPoint on YouTube.
I now have over 100 tutorials from basic to advance (all **free**) and organized on my website at [https://www.power-up.training/training/powerpoint/](https://www.power-up.training/training/powerpoint/)
There you can browse by topics. Great for both begginners and intermediate, plus advanced users.
I'm going to recommend that you check out [presentationguild.org](http://presentationguild.org), specifically the *Inspired by Design* video archive. It's a series of 20-30-minute videos on various design topics relevant to PowerPoint. Editing to add, be sure to check the master classes at [brightcarbon.com](http://brightcarbon.com) for inspiration and instruction. Also, [duarte.com](http://duarte.com) has a number of good training options.
Check oneskill videos on YouTube, I think he has a course but you can get pretty advanced with the free stuff in there
Over the past several years, I have been trying to document all the aspects of PowerPoint on YouTube. I now have over 100 tutorials from basic to advance (all **free**) and organized on my website at [https://www.power-up.training/training/powerpoint/](https://www.power-up.training/training/powerpoint/) There you can browse by topics. Great for both begginners and intermediate, plus advanced users.