You’ve heard of Dr. Alex Schiller on XOXO, now meet the lady behind the N.S.A. principles.

We know what you’re thinking, “this won’t work” or “it’s not for me!” But don’t be fooled, there is proof. One of our lovely XOXperts took the book for a spin in San Francisco and cozied up to a cute guy all night. You can read all about her experience here. Need more proof? Read another testimonial from a former NSAer. “Dr. Alex is a crazy bitch, but her advice actually works!

Be Brave. Be Beautiful. Buy the book and Never Sleep Alone… unless you want to!

Got a question about sex or dating? Ask Dr. Alex* in the comments below!

*Not a real doctor