What are some really good Science Fiction or Fantasy books or series for a 15 year old boy?
I was going to say Lord of the Rings, since I first read it at that time, but … here’s something you could try that isn’t part of that genre, but I’m suggesting it because I read them at around that age and really enjoyed them: The Hornblower series, about the adventures of a British Naval officer circa 1800. You follow him through his life and career as he advances through midshipman to admiral. You don’t really have to understand the nautical terms. You might also try the original books in the Foundation series by Isacc Asimov: “Foundation,” “Foundation and Empire” and “Second Foundation.” He later wrote prequels and sequels to those books that I didn’t think were very good, but the original three were interesting. He wrote them in the 1940s and 1950s, so it is kind of a post-WWII look into the far future that is sometimes kind of quaint, but you might enjoy them. Have fun, and if you come across anything good, let me know….