Daniel Vasallo left a great job at Amazon in February 2019 with the idea of working independently.

He thought about building a product, but decided that he first ought to build an audience, so he set out to learn Twitter. 

From a base of a couple hundred followers 18 months agao, @dvassallo now has over 44K followers.

He wrote a technical book on Amazon Web Services that generated over $100K in revenue. And then he created a guide on how to build a Twitter following, "Everyone Can Build a Twitter Audience," based on his own experience - that guide has also grossed over $100K.

After I spoke with Daniel I purchased his Twitter course and I recommend it.  Purchase it on Gumroad here:

https://dvassallo.gumroad.com/

And do follow Daniel on Twitter at @dvassallo