H.W.
you don't have time to read a book. Okay. Here's a website that's wonderful and the info will take 15 minutes and save you headaches.
http://www.betterkidcare.psu.edu/AngelUnits/OneHour/Toile...
This, by the way, is the approach being used by early childhood ed programs and I've found it to be the easiest by far. My son was using the toilet in a day or two and has been very successful with this.
PS: I can honestly say that, from my experience of nearly 20 years in working with very young children, the only children who 'master' a three-day system are the ones who were already entirely ready to begin with. Please review the readiness assessment on the site I suggested. This approach to toileting is very validating for children and less work for us. So often, when we go forward without all the gimmicks and rewards, our children feel more ownership of their process. The natural reward for learning their own body's signals and responding to them is staying dry. :)