If you want to review the book’s ideas , the content is excellent (4.5/5 stars for inspiration). But if you’re reviewing this specific scanned PDF file , be aware it’s likely a copyright violation. For a legal and better-quality version, buy the paperback or official ebook.
That said, focusing purely on the content of the book itself (assuming the scan is readable): Zen Guitar by Philip Toshio Sudo -Scanned- PDF
Here’s a for a product or content page based on the topic: If you want to review the book’s ideas