🔍 Key Concepts

• Purpose of a chart catalog vs. a reference book • What Chart No. 1 actually contains • How navigators find which chart number covers an area before ordering or downloading charts

💭 Think About

• Ask yourself: which publication is specifically organized to list and index charts by area and chart number? • Consider: does Chart No. 1 list chart numbers, or does it explain the symbols used on charts you already have? • Which of these options is designed as an index or listing of charts rather than a technical reference or theory book?

✅ Before You Answer

• Identify which option functions as a listing or index of charts by region and scale. • Confirm what Chart No. 1 is used for (symbols vs. chart selection). • Eliminate any publications that focus mainly on radio aids, theory, or navigation methods, not on listing chart numbers.