The Beginner's Guide to Claude Code

Want to start building with Claude Code today - not next week? This concise, practical guide gets you from install to productive in a single sitting.

Claude Code is Anthropic's agentic coding tool: instead of autocompleting one line at a time, it reads your whole project, edits files, runs commands, and works through real tasks while you steer. This book shows you exactly how to put it to work.

Inside, you'll learn how to:

• Install Claude Code on macOS, Linux, Windows, or WSL and sign in


• Run your first session: explore a codebase, make changes, and use Git through plain English


• Write prompts that get great results the first time


• Use Plan Mode and permission modes to stay in control


• Manage the context window so Claude stays fast and accurate


• Set up CLAUDE.md so Claude knows your project's conventions


• Create skills, slash commands, and subagents to tailor the tool to your workflow


• Connect external tools with MCP


• Work inside the official VS Code extension (also runs in Cursor)

Written for developers new to agentic coding, this is the fast on-ramp: focused, hands-on, and verified against the current official documentation.

This is an independent, unofficial guide and is not affiliated with or endorsed by Anthropic.