This is a well-written concise complete guide to using conditioning to teach your toddler how to toilet him/herself.
Be aware of the authors' definition of "trained". They consider the child "trained" when he has, one time, walked to the potty unprompted and urinated or defecated there (proving that he has gotten the concept). If you were expecting a magic switch which would convert your child in three hours from diapers to totally accidentless underpants, think again.
This method requires tireless, complete singlemindedness on the part of the parent or trainer for "as long as it takes". The authors aren't kidding about turning off your phone, farming out your other kids, and generally becoming a hermit for the duration. Don't expect to do ANYTHING and I mean ANYTHING else. Even trying to thoroughly clean up any accidents the child has may interfere with the training. Don't do as I did and expect a single day to be enough. Have the calendar ENTIRELY clear for at least two days.
If you have a generally compliant child, this method is likely to work very well for you. If you have an independent, spunky, or spirited child, this like everything else will take more work on your part. The authors' suggestions are not worse than any other ideas on potty training; just don't expect the rosy scenario they paint in the book. They gloss lightly over a few things, such as tantrums: "Don't allow your child's tantrum to interrupt the instruction." While theoretically possible, this requires more energy than that little sentence implies!
In my opinion the authors' best contributions to the process are: (1) emphasis is on dry pants rather than on "producing" something in the potty, and (2) while you're teaching, teach the child the ENTIRE process including emptying the potty into the toilet, flushing, and generally cleaning up after himself.