Defining what constitutes a “portrait” in Picasso’s work is not a simple matter. . . . It may emerge that, after this exhibition, it will be even harder than before to define what Picasso meant by a ...

“It is a curious fact,” writes Alan Bowness, “that there has never before been a major Cubist exhibition in London.” Mr. Bowness, the director of the Tate Gallery, has lately set out to rectify this ...