From her perspective as a historian of the English language, linguist, and veteran English professor at the University of Michigan, Anne Curzan examines some common peeves in grammar, tackling such puzzlers as “who vs. whom,” “less vs. fewer,” “based on vs. based off,” and the eternal “between you and I.” She explores how we can reconcile the clash of our inner grammando (who can’t help but judge bits of usage we see and hear) and inner wordie (who loves to play Wordle and make new puns and the like) and offers tools for becoming an even more skilled word watcher.