I am the author of the book in question. The only e-book edition is the Kindle edition, so you are unlikely to find it on BitTorrent. You can buy it used for less than $4. I suggest you do that. As Steve Jobs pointed out at the launch of the iTunes Store in 2003, spending an hour poking around online to get hold of a pirate copy of something that can be purchased legally for $4 means you are working for less than minimum wage. Best regards, Tom Standage