Explain the effect of print revolution?

Printing reduces the cost of books, the time and labour required to produce each book came down.
-Multiple copies could be produce easily.
-circulation of ideas and open new world of debate and discussion.
-Brought new intellectual atmosphere, helped spread the new ideas that led to reformation.
-Indivisual interpretation of faith even among little educated people.
-The writing of enlightened thinkers helped in French revolution.