This tender novelty board book shines a light on all the ways a parent's love for their children grows more and more each day. My heart used to beat for one, now it beats for two. But oh how giant my heart grows all because of you. A parent's love for their child grows daily, always in new and unexpected ways: through making mistakes, through asking why, through taking a stand, through making up your mind. With a die-cut heart that gets bigger and bigger on every spread, each turning page expands the love that's shared.