Haruki Murakami has run for his entire writing life, taking it up when he realised that the sedentary existence of a novelist was making him fat; he has eventually tackled more than twenty-five marathons, half-marathons aplenty, and even one gruelling 100 kilometre "ultra-marathon" whose odd spiritual benefits are described here in satisfying detail.

His simple approach to running is set down on the page with great skill and grace. But is it a hobby? An obsession? A way to keep fit? Or something more spiritual and meaningful? You can't help plumping for the latter when you read this book, so evocative and powerful are his thoughts on the way in which running requires tenacity, persistence, and a willingness to make the mind and body do things they don't really want to do. Running becomes a way of talking about all the difficulties of life - self-discipline, lack of willpower, the need for consistency.

On the other hand, he's also fantastic on the joys and delights of running: a "very attractive" young Japanese runner who smiles at him everyday on his Tokyo circuit; the mists of the wintry Charles river in Boston; a quick turn around Central Park reservoir in the company of fellow novelist John Irving.

If you aren't even slightly interested in running the book still has something to offer. It goes into detail about his philosophy of life, and he gives his thoughts about being a writer, which is intriguing for anyone who's read his strange and delightful fiction. But in the end I kept thinking about Zen buddhism - not a subject he directly touches upon. But there is something Zen about the simplicity with which he is determined to live his life, eliminating people he doesn't really want to see, pursuing single-mindedly his time and distance goals as a running, admitting that he really prefers just being on his own. The book is charming, completely thought-provoking, and I think very profound. You might even put on your trainers and go for a run after you read it. I have to admit, I did.