Read this if

• ✓ You are an intermediate developer starting with Node.js.
• ✓ You aim to design and implement scalable network services.
• ✓ You prefer learning Node.js through a structured book format.

Skip this for now if

• ✗ You are a beginner seeking an introductory Node.js guide.
• ✗ You already have extensive experience building Node.js apps.
• ✗ You are looking for advanced architectural patterns or specific frameworks.