7 of the most controversial books of all time:

1. Mein Kampf  by Adolf Hitler: This autobiographical manifesto by the Nazi leader was banned in many countries after World War II, but it is still available in some places. It has been criticized for its anti-Semitic and racist views.

2. The Communist Manifesto by Karl Marx and Friedrich Engels: This political pamphlet outlines the basic principles of communism, which has been a controversial ideology throughout history. It has been banned in some countries, and it has been blamed for the deaths of millions of people.

3. Lolita by Vladimir Nabokov: This novel tells the story of a middle-aged man's obsession with a young girl. It has been criticized for its depiction of child sexual abuse, but it is also considered a literary masterpiece.

4. The Satanic Verses by Salman Rushdie: This novel tells the story of a Muslim man who is accused of blasphemy. It has been banned in some Muslim countries, and it has been the target of fatwas, or religious edicts, calling for Rushdie's death.

5. The Catcher in the Rye by J.D. Salinger: This novel tells the story of a teenage boy who is struggling to find his place in the world. It has been criticized for its use of profanity and its portrayal of adolescent angst.

6. Lady Chatterley's Lover by D.H. Lawrence: This novel tells the story of an affair between a married woman and a gamekeeper. It was banned in the United Kingdom for obscenity in 1928, but it was eventually released after a court case.

7. Ulysses by James Joyce: This novel is considered a masterpiece of modernist literature, but it was also banned for obscenity in the United States when it was first published in 1922. It has been praised for its experimental style and its exploration of human sexuality.