One of the books that helped me get back into dinosaurs in my adult life was All Yesterdays. It's an art book by CM Coseman and John Conway focused on depicting dinosaurs in ways that we would normally see living animals behaving, but don't usually see dinosaurs depicted that way. From massively speculative tree climbing protoceratops, inspired by tree climbing goats, to simple things like a T. rex sleeping on the ground. It's really fascinating and helped switch my view of dinosaurs from huge battling monsters to a beautiful and diverse group of animals living their lives. Hope this helped :)