They were all precious to me though they didn't have a particular value. Most were paperbacks and at least half of my library was sci-fi. I had everything I could find by Hermann Hesse. I had a number of old books that were handed down through my wife's family that were written in German. I had a nice series of books that were published each year and I think they were called A Year In Review. A book for each year starting in the forties though the early sixties. The books were nothing but current events for that year and great period pictures. I even tossed the very first book that I owned and well remember begging my mother to buy it. It was a book about birds native to America. It had great pictures of each bird and a bit about each. I had kept the book since the early fifties. No matter what I had, it's sad to lose them.