What is overlanding? Wikipedia states, "Overlanding is self-reliant overland travel to remote destinations where the journey is the principal goal. Typically (but not exclusively), it is accomplished with mechanized off-road-capable transport (from bicycles to trucks) where the principal form of lodging is camping. It often lasts for extended periods of time (months to years) and spans international boundaries."
Overlanding did not originate in America, and it is a little different here. You would be hard-pressed to find a bicycle out in the desert, and most people don't stay out there quite that long. However, the spirit of the activity is the same.
Do you want to give overlanding a try? Great! You will need some gear.
In The Overlanding Vehicle Builder's Guide, veteran racer, off-roader, and journalist Don Alexander provides a terrific overview of what to consider when building your overlanding rig. This includes the planned duration of the trip, the number of people in your party, how far off the beaten path you want to go, and the creature comforts you require.
Understanding those wants and needs shapes what gear you need for the best experience. Covered are the strengths and weaknesses of the types of vehicles themselves, modifications to the vehicles to make them more capable, accessories (lighting, camping gear, food and water storage, etc.), and equipment for trail mishaps and recovery. Driving techniques and trail rules and etiquette are also included.
If you are ready to build a rig or just want to know more about the hobby, this book is a great guide to help you get started.