Its time has finally come - pick up the book that has accompanied you through the last umpteen house moves, or the one that has languished longest in the depths of your kindle. The challenge is simple: to read it between now and the end of June.
If you start it and it's not for you, maybe it's time to let it go to a new home.
With physical books, you won't always know which you've owned the longest, but go on - pick one!
I'm going with Genghis Khan and the Making of the Modern World, by Jack Weatherford. It was published in 2004 and acquired by me in December 2015. Its time has come!