I figured it should be in the public domain by now.

Are there any FREE modern Japanese versions of Miyamoto Musashi's 五輪書 (Go Rin No Sho) on the web? (hopefully in PDF format).

If not, can anyone recommend a modern Japanese version of the book?
Preferably something I can buy at Book Off, Kinokuniya or Amazon Japan.

Thank you.

Yeah, though I couldn't find any in PDF format. Here's the first one I found by Googling 五輪書 現在語訳
http://blog.goo.ne.jp/booksblog/e/0c0736...67e60ac922

Don't know how good it is, but it's probably decent enough.

I don't know about any free online versions of the book, but I do have a dead wood one, written by 渡辺誠, in my possession. It has both the original text and a modern translation of each chapter side by side, followed by some comments from the author. Personally I found this format very intriguing, but I wouldn't recommend it unless you have some confidence in your Japanese ability, as even the translation is fairly advanced.

I have Yoshikawa Eiji's modern retelling of the life of Miyamoto Musashi in hardcover (here it is alongside one of his other opus, Taiko, about that most Japanese of times, the unification of Japan by Oda Nobunaga, Toyotomi Hideyoshi, and of course Tokugawa Ieyasu):



It's English translation has been praised by general readers. I haven't read it, or Taiko, in translation or, alas, in the original, but I really enjoyed his Shin Heike Monogatari, about the meteoric rise of the Taira and their tectonic struggle with the Minamoto, in its partial English translation, so I'm looking forward to both of these other novels. These works are dramatizations, modern novels set in the past, very lively.

You didn't explicitly say you wanted only something out of copyright (well, maybe you did), so I feel only slightly bad for mentioning these beautifully-bound novels. (I picked up these babies, among with another of Yoshikawa's novels, for one dollar a volume at a library sale...)