Suggested by Joy:
Do you remember the first book you bought for yourself? Or the first book you checked out of the library? What was it and why did you choose it?
I really have no idea! My mother probably brought me along to the library long before I could read, because she used to read a lot herself, and also borrowed children's books from the library to read to me. When I started school, we also had a school library, and I borrowed piles of books from there. I have no recollection what might have been the very first one. My choices around the age 10-11 or so would have included a lot of Famous Five and Nancy Drew and similar. I did not own many of those, but I borrowed them frequently from the library.
As for my own collection of books, in my early years it probably grew from books I was given at Christmas and birthdays. But there is also an old tradition of annual book sales in Sweden, each year at the end of February. I can vaguely remember browsing through catalogues for the book sale from perhaps the age of 11 or so. I'm not sure it was all up to me to decide what was bought, though. I think the books we got from these sales were often "classics". Out of the books from my youth that I still have in my bookcase I'm guessing that some might have been bought at such sales: Children's editions of the stories from the Iliad and the Odyssey. Jules Verne's From the Earth to the Moon and Twenty Thousand Leagues Under the Sea. The Diary of Anne Frank. A collection of short stories by Edgar Allan Poe. The Hunchback of Notre-Dame by Victor Hugo. Anne of Green Gables. Little Women by Louisa M Alcott. (All in Swedish.)