Jeppesen Sanderson pilot training books and videos, $3.

Let's face it - whether flying lessons, flight training materials, pilot accessories, aircraft parts, or even aircraft themselves, if it has to do with aviation, it's expensive. That's why it can pay you very well to familiarize yourself with at least some of the various aviation-related items you're likely to see out in the world. The sky's the limit, so learn up!

Whenever I run across training material of any type, I try to ensure that it's not too old to be of practical use to someone. Sure, a 1940's training manual for a B-17 bomber would have its own historical significance - and likely bring good money on eBay - but we're talking about training materials with practical applications here.

A with most industries, the aviation industry is constantly evolving, meaning that static training materials like these will naturally become less viable over time. But in many cases, five or ten years old is still within the range where certain buyers will find the material useful and worth buying.

I also check to make sure everything is in good shape. The textbooks should be clean and the workbooks shouldn't be filled with the previous student's writing. The tapes, CDs or DVDs should look pretty much like new. Remember, nobody wants to buy training material that's been used and abused.

Always try to ensure that everything that's supposed to be there actually is there. This goes for cassettes, VHS tapes, DVDs, workbooks, CDs - everything. It may sound trivial until you consider that a course missing only one of these pieces of information will be worth substantially less than a complete set.

Something to keep in mind here is that anything with VHS tapes will most likely be worth less than similar material on CD or DVD. Not only are VHS tapes of inferior quality to DVD visually, but as the VCR becomes older, fewer of your potential buyers will even have he darned VCR machines to play the tapes on.

So, there you have it. And remember - always go cheap! In the case where things go wrong, it's always much easier to dump everything into the trash and forget about it when you're only into the deal for a couple of bucks!

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