。
Mrs. White next door likes reading.
Literal
Next [of-の] White-grandma [topic-は] reading [subject-が] like.
ホワイトばあさん — ばあさん ('grandma, old woman') as a familiar-respectful term for an older woman, often used for neighbors. 読書 ('reading') is the set noun for 'reading books.' 好き takes が on what is liked, since the thing 'liked' is grammatically the subject in Japanese. A warm, neighborly description.