Here I go about books and trains again. I find this subject endlessly fascinating. The ethnicity of this woman isn't clear to me. She could conceivably be Japanese, but reading a book uncovered (by some plain store-received cover) is so un-Japanese. Perhaps she's a rebel? Or perhaps she assumes she's "safe" because the title is in English. (Safe from what? From revealing her "identity," her character.) Probably she's just a person from a place where folks aren't so concerned with concealing the books they read in public spaces, or where "identity" is worn on the sleeve.

In case it's not clear, she's reading Saying What You Mean: A Commonsense Guide to American Usage, which I find tops off this post with a delectably ironic cherry.