What are print on demand books and how are they affecting the publishing industry

Print on demand books = print on demand publishing, which is a method of producing books in specific quantities that are needed to meet an ongoing bookstore, or book buyer's, orders.

Printing on demand is a book distribution method that was made possible by digital printing (also inseparable from digital printing). It prints books only in response to orders, and only prints the exact amount ordered. Due to the capabilities of digital printing, print on demand is actuallu capable of filling an order for one book profitably.

the three roles stated in the dialogue develop the siblings' personalities.

lloyd's personality looks like a trademarketer

dana's personality is afraid from lloyd's behavior and the oldest sister is a decided person who tries to solve any conflict

during the middle ages bibles and most christian literature was written in latin i think that’s the answer you are looking for