Actually, my understanding is you can't really trademark titles of things. That's why you'll see books and movies with the same titles and nobody getting sued.

There's also a Perl book that predates my book which I didn't know about, so there's precedent for people to do this already.

Finally, I really don't care so much about the title, I care more about people getting the method right. It looks like this was taken down so I can't comment on how it's written, but my typical beef with these books is they use the title, then they proceed to write a completely different book that doesn't follow the method at all. To me that's just obnoxious arrogance on their part and typical programmer "I can do it better" crap. There's a reason my books are structured the way they are, and just taking the title to pimp a book that isn't even close to the same structure just pisses me off.

But, I haven't seen this book yet so I don't know what it's done.

EDIT: Ok found the google cache, and it looks like this one's doing it right. I officially bless this title in the name of ... like whatever and shit.