The definitive guide to Claude Code — from zero to mastery. For everyone, no prior coding experience required.
This handbook is organized as three standalone books. Read in order, or jump to what you need.
For everyone — no programming experience required.
Takes you from "what is a terminal?" to building your first real project with Claude Code.
For developers ready to unlock the full power.
Skills, sub-agents, hooks, MCP, token optimization, desktop app, plugins, worktree.
For those building system-level AI workflows.
Harness engineering, agent teams, scheduled tasks, cloud deployment, team workflows, security & cost.
Joey Yu — Developer and heavy Claude Code user. Built 50+ projects with Claude Code including AI tools, optimization systems, and quant trading platforms. This handbook is based on 7 weeks of intensive usage consuming $3,400+ in API-equivalent tokens.