A mental model is an explanation of someone's thought process about how something works in the real world. By reading different mental models, you can learn "how to think" and with this critical mindset, you will understand the reason to have discipline and make a better mindset
The Art of Twitter is a guide to help you grow and monetize a Twitter account from scratch i.e. from 0 followers to 10,000 followers and using it to make hundreds of dollars each day.