Every year, 400,000 families in the United States welcome premature babies .
Ten percent of babies born in the U.
are preemies.
But that one word, preemie, encompasses a range of medical and cultural experiences.
There are textbooks, medical-ish guidebooks, and the occasional memoir to turn to .
but no book that collects personal experiences from the many people who have parented, cared for, or been preemies themselves.
Until now.
In What We Didn't Expect, journalist .