Khizr Khan, the parent of a fallen Muslim US soldier, spoke at the 2016 Democratic National Convention. In his speech, he criticized Republican Presidential nominee Donald Trump, questioning if Trump had read the US Constitution. He offered to lend him his copy, pulling out a pocked sized version of the Constitution. After the convention, sales of the pocket sized Constitutions took off, and it became the second bestselling book on Amazon.com.
Read more about how pocket Constitutions became bestsellers.