Now, notice something important: some terms appear more than once, with… — Page 655, Lesson 764

This is the index of the book — the alphabetical list of topics and the page numbers where they appear. So what I want to walk you through is how to read this index, because it tells you exactly where every concept lives in the syllabus, and that's a skill you'll use constantly when you're studying for the ATPL exams. Let's look at the entries here. You'll see terms like "Drift Rate Calculations" on page 163, "DRMC" on page 204, "Dual FDS" on page 348, "Dual Mode" on page 272, "Dutch Roll" on page 403, and "Dutch Roll Filter" on page 405. Each of these is a specific topic, and the page number tells you where to find it in the book. Now, notice something important: some terms appear more than once, with different page numbers. For example, "Dynamic" appears on page 41, and "DYNAMIC" — in capital letters — appears on page 13. That's a clue. The capitalised version is likely a heading or a major section title, while the lowercase version is where the term is discussed in more detail. Similarly, "Dynamic Pressure" appears on pages 13 and 41. So when you see a term listed multiple times, each page reference points to a different discussion of that concept. Let me walk you through the "E" entries, because they show you how the index groups related terms. You have "EADI" on pages 266, 281, 283, and 286 — that's the Electronic Attitude Director Indicator. Then there's "'EADI' Display" on page 284 — note the quotation marks, which indicate it's a specific display format. "Earth Gyro" appears on pages 145 and 169, "Earth Orientation" on page 235, "Earth Rate" on pages 142 and 235, "Earth Rotation" on page 257, and "Earth's Gravity" on page 169. Now here's the key thing about the index: it's alphabetical, but it also groups related concepts. Look at "EAS" on page 44 — that's Equivalent Airspeed. "E Bar" on page 59 — that's the error bar on an instrument. "ECAM" on page 282 — that's the Electronic Centralised Aircraft Monitor. "Economy Cruise Mode" on page 275. "EEPROM" on page 309 — that's Electrically Erasable Programmable Read-Only Memory. "Effective Radius" on page 140. Then you have the display systems: "EFIS" on pages 281 and 288 — that's the Electronic Flight Instrument System. "EFIS Indicator" on pages 265 and 266. "EGPWS" on page 467 — that's the Enhanced Ground Proximity Warning System. "EHSI" on pages 265, 266, 281, 283, and 294 — that's the Electronic Horizontal Situation Indicator. And "'EHSI' Display" on page 288. Finally, "EICAS" on page 282 — that's the Engine Indication and Crew Alerting System. And "Electric Artificial Horizon" on page 177, with "Electric Gyros" on page 145. So what I want you to take away from this is how the index works as your map. When you're studying, you'll look up a term, and the page numbers tell you where to go. Multiple page numbers mean the concept is covered in several places — often an introduction, then a detailed discussion, then an application. The capitalised entries are major section headings. The quoted entries like "'EADI' Display" refer to specific display formats on the instrument panel. This is the foundation of how you'll navigate the entire book. Every one of these terms — EADI, EHSI, EFIS, ECAM, EICAS, EGPWS — is a system you'll need to know in detail for your exams. The index is just telling you where each one lives. So when you're ready to start on the actual content, you'll know exactly where to turn.