Tender care: Picasso’s Mother and Child by a Fountain, which he painted in Paris in 1901 at the beginning of his Blue Period, is one of the many illustrations in a large and handsome volume, Picasso in the Metropolitan Museum of Art, which forms a comprehensive catalogue of all the artist’s paintings, drawings, ceramics, prints, and sculptures in that museum in New York. The book is published by Yale University Press (£40 (£36); 978-0-300-15525-9)