Kubernetes Concepts - Networking, Kubernetes Authors, 2024 - Provides the official explanation of the Kubernetes networking model, including IP-per-Pod and cluster-wide connectivity rules.
Kubernetes Up & Running: Dive into the Future of Infrastructure, Brendan Burns, Joe Beda, Kelsey Hightower, Lachlan Evenson, 2022 (O'Reilly Media) - An authoritative book (3rd edition) that explains the Kubernetes networking model and its implementation principles.