"This is a song about helping your partner to get through life and vice versa. Great relationships need management. In a great relationship that management is shared.”
- Bono about Book of your Heart, 2017
did you know
U2 had planned to release the material for No Line On The Horizon as two extended plays, titled Daylight and Darkness, but during sessions in London in 2008 decided to compile the best songs onto one album.