Why 18th century books looked like smartphone screens

The point being, of course, that the ergonomics of smartphones as reading devices are not only kind of rad, but historically so.

These small formats from days of yore also help explain the stupendous productivity of many historic authors. I’ll often be reading about a nonfiction essayist from the 17th or 18th or 19th century and the bio will mention he or she wrote 56 books or some other ungodly number, and I’ll freak out: Man alive! How can anyone generate so much?

From collision detection: Why 18th century books looked like smartphone screens