Gala Performance looks back at 25 years of the Sadler's Wells Ballet, with photographs and accompanying text. The contributors include Dame Ninette de Valois, William Chappell, Sir Kenneth Clark, Robert Irving, James Monaghan, Sacheverell Sitwell, with a forward by Princess Margaret. Established in 1931 by Irish-born dancer Ninette de Valois (1898 – 2001), Sadler’s Wells Ballet is now known as The Royal Ballet, based at the Royal Opera House in Covent Garden. Published by Collins in 1955. Pages and binding are very presentable with no major defects, apart from some very minor water staining at bottom of early pages. Frontispiece of Princess Margaret photographed by Cecil Beaton and 7 other colour plates. One can say that this is a fascinating book.