I originally read The Giver when I was a kid, but I've read it several times since then as both an older kid and an adult. I'm glad you enjoyed it. I think it's a really good book to read, period, but also a really thoughtful book. Sometimes it feels to me as though we're dangerously close to the type of society depicted in The Giver.

As an adult, I also recently read the three remaining books in that series. I think you will enjoy them. Gathering Blue was actually my least favorite in the series, but I think that's an unpopular opinion so YMMV.