This book is framed by two birthday cakes: the first has three candles, and the second has four. Between the two, a window forms the fixed lens for life passing by inside and outside, revealing how the seasons affect nature and a child’s life. The changing scenery encourages readers to observe the transformations of nature over time in their own environment. Shared with an adult, this large-format picture book is also a great opportunity to discover words and invent stories.