Help stamp out period-space-space

© iStockphoto.com/Tari Faris

© iStockphoto.com/Tari Faris

You know who you are. You took typing in high school and you still put two spaces after a period, because that's how you were taught. Well, cut it out, says Slate's Farhad Manjoo: "Every modern typographer agrees on the one-space rule. It's one of the canonical rules of the profession, in the same way that waiters know that the salad fork goes to the left of the dinner fork and fashion designers know to put men's shirt buttons on the right and women's on the left."