Check Out These Before-and-After Speeches

I've long admired Udemy for its marketing and smart business model, though I haven't used any of its online courses.

Before-and-after gif on Udemy.com

They got in touch with me after seeing the ArgueLab videos and sent me to its latest before-and-after videos of famous speakers. Even Barack Obama has improved over the years. 

You can check out the speech training site here.