Whether it’s a feature wall or a full room, wallpaper can add a touch of style to your home. But if you want it to look its best for years to come, hanging wallpaper is a job that shouldn’t be rushed.

Sean Hollister is a senior editor and founding member of The Verge who covers gadgets, games, and toys. He spent 15 years editing the likes of CNET, Gizmodo, and Engadget. At first, I thought it ...