I'm all for routines but flexibility is the key. I believe that routines do give babies/children security and help them thrive but we have to remember that they aren't robots and have individual needs that we need to be looking out for. I've never read that book. I gained some helpful info from 'Secrets of the Baby Whisperer' where the feed,play,sleep routine is encouraged...but again i had to play a lot of things by ear as DD grew and changed.