Nailit....like you, I am getting rid of books. Due to my health, I may not be around for another 64 years (!) and none of my family have any interest in books whatsoever. I have donated quite a few to local charity shops I also have a large collection of classical CDs, although these are more problematic to get rid of.
I have also started to get rid of other things, like my Wedgewood dinner service, which has already gone to my brother, where it is on display on his Welsh Dresser.....it looks so much nicer there, than it ever did in my kitchen cupboards, slowly gathering dust !