India, May 29 -- Books have often been feared more than weapons. Across history, governments, religious institutions, and authorities have banned or restricted certain works because they challenged political power, questioned religious beliefs, or exposed uncomfortable truths about society.

From political treatises to dystopian fiction and even classic philosophy, these books sparked controversy that led to censorship in different parts of the world.

Here's a look at some of the most famous banned or restricted books - and why they were considered so controversial. Take a look at these famous 15 books mentioned below:

The Prince (1532) - Power Politics That Shook Rulers

Machiavelli's The Prince is often associated with ruthless politi...