The Carmichael book has been around and while I've not looked through it in detail, I have a couple of friends who have used it with some success. I'm guessing it's a great place to start. While some don't like Carmichael for is associations with dopers in the past, there is little doubt that he knows a thing or two about training athletes - particularly cyclists. The man has created a coaching empire and has been credited with bringing high level coaching to "regular" folks and creating the "coaching industry" which may or may not be a good thing I suppose.
It looks like Joel Friel has an updated version of The Cyclists Training Bible (2018) as well as some other more recent books and one on training with a power meter. I'd start with something that'll help you create a training program designed around your events, then as you read more, you can enhance the workouts with what you think is most applicable to your needs. I have always liked Friel's research based approach. Friel seems more focused on the science of training while Carmichael's books may be good, I always felt like they were as much - if not a bit more - about selling books as they were about training - that's just an opinion and you may find otherwise.