April = Augusta. If you haven’t read this one yet it provides a bit of a wider lens on Augusta and ANGC:
There are a lot of books about the Masters, Augusta National, or the people around the Masters. Some are good, some are great, and some are terrible. This is a great book and I highly recommend taking @Randy’s advice and read this one. I read it a few years ago but I think it might be time to for a reread.