Answer:
The section in the library where you would most likely find a book about the life of William Butler Yeats is the nonfiction section
Step-by-step explanation:
The nonfiction section of libraries has books that present information or stories as in the case of biographies that provide real data from real people and real situations, there are no characters or any kind of literary device that the fiction writers use, and even if William Butler Yeats was a well-known poet, his biography will be full of facts.