But this book is not written in the usual way. It is written using an external thinking system, which I call a Second Brain.

The evidence is clear: Instead of squeezing as many pages as possible out of one idea, How To Take Smart Notes squeezes as many ideas as possible onto every page. Every paragraph has a point, and I struggled to leave anything

Take notes, on paper. Five hundred years later, Leonardo’s notebooks are around to astonish and inspire us. Fifty years from now, our own notebooks, if we work up the initiative to start writing them, will be around to astonish and…

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