I have no idea why this sat on my shelf unread for 5 years, but once I picked it up it was a really fast read. It‘s a novel about identical twin sisters, both of whom are really into grammar/linguistics from a young age, and the family that surrounds them. I liked it. I kept thinking it was a true story, probably because the last book I read WAS a true story about identical twin sisters. But whether fiction or memoir, it was a solid story.