Because old plaster is often lime-based ... sample for lab testing before you begin demo. Likewise, if your walls were painted before 1978, testing for lead paint and taking proper precautions ...

The 17 monstrous painted panels in the London show are augmented by grafted-on photographic blowups, found objects and even entire plaster sculptures ... and three-year-old daughter, and is ...

When it comes to wall coverings, there are safe bets like paint and wallpaper and then there are more unexpected choices.