Welcome to the fully-updated and revised 6th edition of The Wonder Weeks-with 30% new material. Fussy at five weeks. Cranky at 19-weeks.

Clingy at a year. The baby must be approaching a leap; a time during which new skills are mastered, discoveries are made and perceptions evolve. For new parents, being able to anticipate predictable fussy phases-and the magic that follows-is a game-changer, courtesy of The Wonder Weeks.

With more than two million copies sold worldwide, this award-winning guide is based on ground-breaking behavioural research that explains...