Jamie Glowacki—potty-training expert, Pied Piper of Poop, and author of the popular guide, Oh Crap! Potty Training—shares her proven 6-step plan to help you toilet train your preschooler quickly and successfully.Worried about potty training? Let Jamie Glowacki, potty-training expert, show you how it’s done. Her 6-step, proven process to get your toddler out of diapers and onto the toilet has already worked for tens of thousands of kids and their parents. Here’s the good news: