I really loved this low stress approach the task of potty training. I have twin boys, and with the help of this book, a few M&Ms, and some super cool big boy underpants, we got both our sons totally out of diapers well before the 3rd birthday. I had considered the whole "boot camp" / one weekend approach, and I am so glad we went with this instead. You just start with short sessions out of diapers in the comfort of home, and you let the child take initiative. Only after you've gotten it going well at home do you attempt leaving home without a pull up (aka "going out underwear.") And then finally you ditch the night pull up. It's a gradual progression, and I just think it's healthier, wiser, and calmer. Plus it really worked well for us, even with two boys at once. I have recommended it to many of my friends.For those who are all excited about it being "sexist" to address a potty training book to one gender, it's good to be concerned about that, but as a practical matter, for good or ill, our culture encourages boys to take initiative, and this book exploits that tendency to help the child adopt the potty plan as his own. So great, use it for girls too. We should all grow up bold and confident and self sufficient. But don't start persecuting boys and decrying this method. I see no reason why child-led, one step at a time potty training is not universally a good idea.