I am still hankering after some books I have lost, lent or given away over the years:
The Pillow Book of Sei Shonagon
Autobiography of Chad Varah
3 birth books, by Michel Odent and 2 other writers
An anthology of parenting pieces by La Leche League
A book by Anais Nin
Even though I could look online and get 2nd hand copies, I won't because I am not that bothered by their losses, just niggled by them. I have plenty of newer books sitting waiting on the shelves while I read online!