With the move to electronic media, there is scope for more experimentation in length. There is no intrinsic reason why books should be a particular length. Boo

With the move to electronic media, there is scope for more experimentation in length. There is no intrinsic reason why books should be a particular length. Books were the length that they were, in the 20th century in particular, because of the needs of the physical printing industry. Cost went up more than linearly with length, beyond a certain point. (In the 19th century books were often serialized in magazines first.)