The Complete Handbook of Navigational Compasses
Selection, Use, and Care for Professionals, Serious Hobbyists, and Businesses
by Alumigogo Books
non-fiction
The definitive reference on navigational compasses: how they work, which to choose, how to use and maintain them, and the business of selling and servicing them.
About this book
Navigational compasses are deceptively simple tools. A magnetized needle floating on a pivot seems like ancient technology, yet it remains an essential instrument for anyone who needs to find their way without relying on batteries, satellites, or cell coverage. This handbook treats the compass with the seriousness it deserves, covering everything from the physics of terrestrial magnetism to the practical realities of choosing, using, and caring for an instrument that can make the difference between a successful trip and a failed one.
The book is written for the professional and the serious enthusiast. It explains how to interpret manufacturer specifications, how to perform meaningful accuracy checks with a simple reference bearing, and how to account for local magnetic anomalies that can throw a reading off by several degrees. It goes beyond the basics of holding a compass and walking a bearing, covering advanced techniques like resection, triangulation, and using a compass in conjunction with a map and altimeter. Each chapter is grounded in real-world scenarios, from navigating a dense forest in the Pacific Northwest to conducting a cadastral survey in an area with significant iron-bearing rock.
For those who work in the industry, the book includes a candid chapter on business opportunities, from retail and guiding to specialized servicing, and outlines the certification paths and standards bodies that lend credibility to a professional operation. The final chapters address the ongoing evolution of the compass, examining how it coexists with and complements GPS and how traditional manufacturing is adapting to new materials and user expectations. Whether you are a land surveyor, a search-and-rescue professional, a wilderness guide, or a hiker who wants to be self-reliant, this handbook provides the knowledge you need to act with confidence.
Reader Reviews
Steven Garcia
★★★★★Solid reference book. After reading this, I did a proper declination adjustment on my old mirror compass and was surprised my bearings were off by five degrees. The chapter on choosing the right type was useful, though I wish they had spent a little more time comparing specific models, but I can probably find that info elsewhere. As a weekend orienteer, the field techniques section was worth the price of admission alone.
Linda Adams
★★★★★I'm a land surveyor and bought this for the office reference shelf. The explanation of local attraction and how to account for it was better than what I got in my own training. The business opportunities chapter was interesting, mostly because it made me realize how many people don't understand basic compass care. A couple of the maintenance procedures would not fly in our safety protocols, but overall, a sturdy, well-written handbook.
Charles Robinson
★★★★★I'm a geology student, and my professor recommended this book. The chapter on how the Earth's magnetic field actually works was clear, and it made me feel less dumb when I'm wrestling with a Brunton. The section on choosing the right compass helped me pick one that can measure the strike and dip of rock formations, which my previous baseplate model couldn't do. Some parts feel a bit geared toward hikers, but it's still a very useful text.
Cynthia Brown
★★★★★Incredible. I'm not a professional, just a serious hiker, and this is the first time a compass handbook actually felt like it was written for me. The explanation of declination was so clear I was finally able to adjust my compass correctly and navigate in a whiteout on a trail in the Rockies. I particularly liked the honesty about compass accuracy and the reality of magnetic anomalies. Excellent and well worth a place on the shelf next to my topo maps.
Michael Smith
★★★★★Finally, a manual that treats the compass like a precision instrument and not like an accessory. The troubleshooting chapter saved my gear when I thought my compass was done for; it was just a bubble in the capsule. The deep dive into specs and materials is dense but very rewarding. This is the definitive guide, and I've already recommended it to the rest of my search-and-rescue unit. Strongly recommended.
Kevin Harris
★★★★★I run a small gear shop, and this has become our go-to reference for answering customer questions. The chapter on what the specs actually tell you has stopped me from selling the wrong compass to someone. The book gave me a few ideas for expanding our service offering, which I have since done. It is well written and has made me a better retailer.
Stephanie Mitchell
★★★★★Good book overall. The sections on baseplate compasses and military lensatic compasses were very useful. I took one star off because the troubleshooting section could have been more detailed; the fix for a loose needle is a bit thin on the actual how-to if you aren't a watchmaker. Still, the glossary and the final chapter on future trends were excellent reads and very informative.
Lisa Wright
★★★★★Decent content, but a bit dense and formal at times. I was hoping for more on the practical side of orienteering and less on the history of the Earth's magnetic poles. I did find the chapter on choosing the right compass helpful, though I think the author could have been a little more blunt about which models are actually good value. It's a thorough book, but it feels like a textbook rather than a field guide.