Since the Once Upon a Potty (girl) and (boy) books were first published in 1975, America's Latino population has boomed to 52 million. One in six Americans is Hispanic, as are 25% of all American children under the age of 5.

For generations these books have helped parents and toddlers work through the trauma of training, and all parents face that challenge at some point. Bookstores and libraries with Spanish-speaking customers and patrons must have appropriate collections. Flawlessly translated, Mi bacinica y yo para ella and Mi bacinica y yo para él are an essential purchase.