Fetal and Neonatal Physiology, edited by Drs Richard Polin, William Fox, and new co-editor Steven Abman, is the third edition of a well-established reference text that continues with its primary focus on the developmental physiology of the fetus and newborn. Notably, in the 6 years since the last revision, there has been considerable progress with regard to gaining a molecular insight into developmental events. The editors of this work have assembled an impressive collection of contributors who emphasize this progress. Good for them.