One idea I came up with today, is that the ideal book would also have an online website where you can read it all, conditional on you having bought a book. Essentially a paywall that is also a measurable book sale. And otherwise you can just get highlighted extracts from each chapter.
One idea I came up with today, is that the ideal book would also have an online website where you can read it all, conditional on you having bought a book. Essentially a paywall that is also a measurable book sale. And otherwise you can just get highlighted extracts from each chapter.