This guide walks you through everything you need to know about peer-to-peer (P2P) network diagrams, from what they are and how they work, to the key elements that make them effective. You’ll explore the main P2P architectures, see real-world diagram examples like BitTorrent, WebRTC, and Gnutella, learn how to draw your own P2P network diagram step by step, and compare peer-to-peer layouts with traditional client–server networks.