Gift cards are an excellent option when you know that your friend enjoys books, and even more so when you are not quite sure what books your friend wants or already has! Buy a gift card to give as a present and help people learn more about the world through our books.
Keith Farrell teaches HEMA professionally, often at international events (why not hire me to teach at your event?), and has an interest in coaching instructors to become better teachers. I teach regularly at Liverpool HEMA, and help behind the scenes with running HEMA in Glasgow at the Vanguard Centre.