<human>:  Who is the author of the book ‘The Seven Deadly Sins’?
<bot>: The book “The Seven Deadly Sins” was written by John Stuart Mill. It is a collection of essays on the seven deadly sins, which are: pride, envy, greed, lust, gluttony, wrath, and sloth. John Stuart Mill is an English philosopher, economist, and political theorist. He is best known for his works on Utilitarianism and on the philosophy of liberty.