I have studied Aikido, Iaido, Krav Maga, Ch'uan Tai Chi and Qigong since I was 16, and still now I've reached my mid-40's I still love it as much as my first week all those years back.
I've been a fervent admirer of weaponry in all it's forms since I started all disciplines. It's very much the aesthetics and beauty within blades etc that i find so appealing. I also very much enjoy the practice of using these weapons, especially within the graceful discipline of Iaido. To an outsider it hardly even looks like a sport because you're using weapons but not against an opponent and rest assured the blades are sharpened beyond that of a razor blade, we are even marked before the competition begins on how sharp and faultless our blades are. It's a beautiful sport, high in elegance and grace. By practising each Kata we build muscle memory and without any revision necessary or looking back through notes I can still recall various Kata back when I was about 20 and it's not my mind remembering, it's definitely muscle memory.
Anyhoo, a book worth buying to give you an insight into our way of life and by extension the way of life datiing back to the days of the Samurai through the soul of Japan, or Bushido.