Mastering Claude

30 lessons covering Claude Code, prompting, models, API techniques, and production patterns. From your first prompt to production-ready systems.

Start Learning I know Claude — jump ahead

Where should you start?

New to Claude

Never used Claude Code before? Start from the beginning.

Quick Start

Experienced Developer

Used Claude but want to level up? Jump to CLAUDE.md and Plan Mode.

CLAUDE.md

Power User

Ready for advanced topics? Explore models, API patterns, and production workflows.

Models & API

Key Principles

💎
Invest in CLAUDE.md. It's the highest-leverage thing you can do. Good instructions compound across every session.
📋
Use Plan Mode for anything non-trivial. Review before Claude acts.
🎯
Be specific, not vague. "Fix the login bug" is worse than "The JWT token is not being refreshed on expiry in auth.ts."
⚡
Let Claude parallelize. Ask it to do multiple independent things at once.
🧠
Memory is your friend. Teach Claude your preferences so you never repeat yourself.
🔧
Hooks automate the boring stuff. Sound notifications, auto-formatting, git hygiene.

Featured Lessons

Six essentials to get you productive fast.

Foundations

00 · Quick Start

Get your first win in 5 minutes

 Working with Claude

04 · CLAUDE.md

Teaching Claude your project's rules

 Working with Claude

06 · Plan Mode

Reviewing before Claude acts

 Foundations

02 · Claude Platforms

Code vs Desktop vs Claude.AI

 Models & Cost

19 · Choosing Your Model

Opus, Sonnet, or Haiku?

 Workflows

16 · Advanced Patterns

Expert-level techniques

View all 30 lessons

Quick Reference

View Full Cheat Sheet

Built-in Commands

/help          - Claude Code help
/plan          - Enter plan mode
/memory        - View/edit memory
/settings      - Open settings

Additional Resources