Announcing a brand new, cover-to-cover revision of America's pregnancy bible. What to Expect When You're Expecting is a perennial New York Times bestseller and one of USA Today's 25 most influential books of the past 25 years. It's read by more than 90% of pregnant women who read a pregnancy book—the most iconic, must-have book for parents-to-be, with over 14.5 million copies in print.

Now comes the Fourth Edition, a new book for