Do you have a specific edition or aspect of the book in mind? For example:
* Are you asking about the pattern of the poems themselves? Some poems might focus on a particular theme (like family, childhood, or memory), while others might have a specific structure or rhyme scheme.
* Are you looking for the pattern of the illustrations? The illustrations might have a recurring style, color palette, or use of imagery.
* Do you want to know about the overall structure of the book? The poems could be arranged chronologically, thematically, or in a non-linear fashion.
To help me understand your question better, please provide more details about what kind of pattern you're interested in.