Digital distribution made it practical to buy individual songs rather than entire records. It's interesting that the publishing industry hasn't adopted a similar model.
I often don't want to read a book. I want a pamphlet or a blog post that gets the idea across succinctly, but with the *option* of following the writer's work, should they continue to explore the topic in a series.
Books are already made of chapters. Could it be a good idea to treat chapters like pamphlets?