I'm kind of surprised that so many of those other books were almost exactly like mine. They even follow the form. There were some books that even copied the stamp. It shows so little imagination. ↗
It's funny how the music industry is enraged about the Internet and the way things are copied without being paid for. But you know why people steal the music? Because they can't afford the music. ↗
The idea of copyright did not exist in ancient times, when authors frequently copied other authors at length in works of non-fiction. This practice was useful, and is the only way many authors' works have survived even in part. ↗