The science of toilet learning (a.k.a. elimination communication) is just getting more widely established.
We are committed to stay up to date with the latest science and will list some of the best peer-reviewed literature and books on this topic on this page for your convenience.
More than that, I'm committed to do a full literature review alongside some of the experts in the field and get that published in a peer-reviewed journal to keep the science moving forward and have a great resource to share with pediatricians, nurses, midwives, antenatal class instructors, Ministry of Health, and parents.
However, to do this takes time and money.
Any donations made will go towards making this literature review happen.

Scientific journal articles
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Bao et al (2008) - The new way to do it
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Letterman et al (2011)
Books
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Ingrid Bauer - Diaper Free: The Gentle Wisdom of Natural Infant Hygiene