By far my favorite book, because I am a big fan of sleep, and think when a baby isn't sleeping that it affects the whole family. Known as the "Crying It Out Doctor," his contention and mine is that if you follow his advice when your baby is young, there will be no need to cry it out. Baby's have a natural circadian rhythm and if parents accommodate it, life can be pretty nice. It is much easier to do that than make your baby accommodate you. We offer a monthly sleep class in our office that addresses this issue.