When Men are from Mars, Women are from Venus came out in 1992, it revolutionized the way people approached heterosexual relationships, arguing that in order to have successful communication, a man and woman must acknowledge their extreme biological differences.
Now 20 year's later, the self-book by relationship counselor John Gray has sold more than 50 million copies and has become the most popular relationship book of all time. It's paved the way for an industry in relationship self-help books. Here is a list of game changing relationship books that have come out since Men are from Mars, Women are from Venus.
On June 13, CBC aired a documentary about the book and it's influence in 2013. You can watch it in the player above.
Correction: This article originally stated that Men are from Mars, Women from Venus came out in 1993. CBC Books regrets the error.