Get your family on their mailing list, have them buy something and then they will get the catalogs. When their "new arrivals" catalogs come they must be looked through for aviation/military titles which are scattered in the non-fiction pages, so unless you have infected family members with "Aviatitus" they may find it boring. Whatever their interests, they may well find subjects they like. The old school mailing address is: Edward R. Hamilton Bookseller Company, P.O. Box 15, Falls Village, CT 06031-0015. Website has, they say, a larger listing and and different shipping rates. The old school is by check/money order only while online uses VISA,MC, PayPal. They have proven very reputable as when a selection is gone they send a refund check for that amount which you can cash or use with a future order. Two years ago, I found one of their checks from 1993 I used as a bookmark in a book, wrote them to see if they would honor it and was told " of course". That's why more than half of my books come from them. One other thing, although I have had only one mistake, they added a book I did not order and was not charged, they told me to keep it. As it was, by my standards, expensive, I sent it back with explanation. The sent a refund check for it.