Marlo Mack (a pen name) produces the How to Be a Girl podcast, chronicling life with her transgender daughter, 'M'. She has been interviewed and featured in, and written for such outlets as the New York Times, National Geographic, Scientific American, TIME magazine, People, and Refinery29. In May 2021 a BBC World Service two-part documentary Marlo helped produce and featured in was aired. This is her first book.