What’s Your Pronoun? discusses something that’s on a lot of people’s minds, for good or bad: the humble part of speech we call the pronoun. Despite what some idiots protest, everybody uses pronouns all the time: I, you, she, he, they… They’re ubiquitous in speech and have been stirring up people’s emotions for years, whether it be wanting a neutral indefinite pronoun (for when you don’t know the gender of the person you’re referring to), or perhaps (like me) wanting to be addressed using a definite neutral pronoun (when someone doesn’t want to reveal their gender, or doesn’t identify with any).
Barron mostly discusses the former, because that’s something that he feels English is lacking (and which he has a fairly marked preference about, judging from this book). He goes over the numerous attempts to invent neutral pronouns, and some of the societal drivers behind that like denying women suffrage, getting used to women taking equal part in public life, and now the greater acceptance in Western society (the examples mostly stick to the US and the UK) of people who prefer to be gender-neutral.
It gets a little stodgy at times, personally, because I don’t care exactly when every different neopronoun was coined, and I’m less interested in a neutral indefinite pronoun (which English speakers usually solve with singular “they”, even if they believe that to be ungrammatical) than in a definite one. Baron is definitely behind singular they all the way, by the sounds of his arguments in this book, whether it be definite or indefinite: in answer to the cries of grammatical issues, he points out that singular “you” is a much more recent coinage, and one nobody even murmurs about these days.
I found it fairly readable, with some chapters being very absorbing and others getting a bit bogged down. If you’re interested in grammar, I’d recommend it.