A barren white canvas, valued at more than $1.5 million, is up for auction in Germany this week. The 1970 piece by minimalist American painter Robert Ryman — titled "General 52" x 52"," a nod to ...

Recent books by Tim Lawrence and Douglas Crimp underline the close relationship between the New York art scene of the 1970s and '80s and that most unjustly maligned of musical movements, disco.