Mr. Brown's Fantastic Hat (Ayano Imai)

Mr. Brown is okay with being alone. Things change when a bird comes along and nests in his hat. As days go on more and more new friends come and interestingly, his hat grows to accommodate all this new found friendships.


Goodreads says:

An enchantingly positive story of love, loneliness, and the hope of renewal

 

“Who needs friends?” thinks Mr. Brown. “I can suit myself and wear my smart hat all day long.” Try as he might, however, Mr. Brown is lonely. But when a woodpecker decides Mr. Brown needs some company, his life is transformed.