You'll notice the entries run alphabetically, from N through P here — Page 567, Lesson 769

This is the index of the book — the alphabetical listing of topics with their page numbers. Let me walk you through what you're looking at, because learning to read an index properly is part of learning how to use your reference material as a professional. You'll notice the entries run alphabetically, from N through P here. Each entry gives you the topic name and the page number where that topic is covered in the book. So if you're looking for something specific during your studies or later in your career, you flip to the index, find the term, and go straight to the page. Let me go through these entries with you, because each one represents a concept you'll need to know. Starting with the N section. Nationality mark — that's the letter or letters identifying the state of registry of an aircraft, found on page 63. NDB stands for Non-Directional Beacon, a ground-based radio navigation aid, on page 169. Night flight time — that's the time flown during the period defined as night, on page 78. Non-load-bearing Surfaces — surfaces on an aircraft that don't carry structural loads, on page 443. Non-precision — referring to non-precision approaches, which don't provide vertical guidance, on page 169. Non-scheduled flights — flights that aren't on a regular published timetable, on page 25. Normal Operating Zone (NOZ) — that's the central zone of a parallel runway approach system where aircraft are expected to operate, on page 238. NOTAM — Notice to Airmen, a notice containing information essential to flight operations, on page 352. NOTAM Checklists — the lists used to verify you've seen all relevant NOTAMs, on page 355. No Transgression Zone (NTZ) — the zone between parallel approaches that aircraft must not cross, on page 238. Moving to the O section. Obstacle Clearance — the minimum clearance an aircraft must maintain above obstacles, on page 152. Obstacle Identification Surfaces — surfaces used to identify obstacles for instrument procedures, on page 439. OCA/H — Obstacle Clearance Altitude/Height, the lowest altitude or height above the threshold that ensures obstacle clearance, on page 177. Oceanic Control Areas (OCAs) — airspace over the oceans where air traffic control provides services, on page 258. Offset Entry — a procedure for entering a holding pattern, on page 212. OFIS — that's a flight information service, on page 278. OIS — Obstacle Identification Surface, on page 439. Omni-directional Departures — departures that can be made in any direction, on page 157. Open FIR — Flight Information Region that's open, on page 257. Operational Multi-crew Limitation (OML) — a limitation requiring multi-crew operation, on page 81. Outer Main Gear Wheel Span — the distance between the outer wheels of the main landing gear, on page 371. Then the P section begins. PANS — Procedures for Air Navigation Services, on page 31. PANS ATM — the air traffic management version of those procedures, on page 273. PAPI — Precision Approach Path Indicator, the lights that show you if you're on the correct glide path, on page 427. PAR — Precision Approach Radar, on page 329. Parallel Entry — another holding pattern entry procedure, on page 211. Paris Convention — the early international agreement on aviation law, on page 63. Passenger Baggage — on page 455. Passengers — on page 475. And then it cuts off at Pavement Stre — that's the start of "Pavement Strength," which continues on the next page of the index. Now, here's the professional point. As a pilot, you don't memorise this index. You use it. When you're studying a topic, or when you need to look something up during your career, this is your map. You find the term, you note the page, and you go there. The index is organised alphabetically precisely so you can find things quickly. The figures I have available here — Figure 7 on page 158 and Figure 7.2 PANS OPS 7 on page 159 — those relate to the PANS OPS material you'll encounter later in the book. They're not part of this index page itself, but they're flagged here because they're relevant to the PANS entries you just saw. So that's your index. Every one of these terms — from Nationality mark to Pavement Strength — is a topic you'll cover in this book. When you encounter them in the chapters, you'll learn what they mean in full. For now, just understand that this is your reference tool, your map to the material.