Pillars of Productivity is focused on leveraging the essential digital tools (email, calendar, task manager, notetaking app, read-later app) that turn you into a capable, mindful professional who can handle anything life throws at them.
Building a Second Brain zooms in on the notetaking part and teaches you how to consistently turn the information you consume into creative output and concrete results, leveraging your notetaking app.
A Second Brain is your holistic ecosystem of digital tools, encompassing the material from both courses. It is a trusted place outside your head where you can collect and organize your most important ideas and insights and use them to do your best work.