The author is famous for writing novellas, especially skilled at creating well-developed characters within limited length.

novellas 是 novella 的复数形式。novella 来自意大利语，指"中篇小说"，篇幅介于短篇小说(short story)和长篇小说(novel)之间，通常有2万到4万字。 well-developed 是由副词 well（很好地）和动词 develop（发展、形成）的过去分词 developed 组成的复合形容词，表示"充分发展的、塑造完善的"。