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This book takes you from zero networking knowledge to expert-level understanding of how the Internet actually works. Beginning with the fundamental problem of communication between computers, we derive every concept logically: signals and bits, encoding and packets, frames and links, addressing and routing, reliability and congestion, encryption and naming. Each protocol is explained in depth, why it exists, what problem it solves, how it works internally and what trade-offs its designers made. You will learn to read packet captures, trace connections end to end through autonomous systems, implement networking components from scratch and debug real network problems. No prior networking knowledge is assumed. Only curiosity and a willingness to understand the machinery beneath the surface.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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