At the beginning of the 20th century, there was an unprecedented explosion of creativity in all artistic fields. Overwhelming both Europe and North America, the Russian Ballet revolutionized theatrical design with their stage sets and their costumes that were ablaze with colour yet refind in effect, bearing much of the mystic of the Orient yet also visually influenced by the work of the Persian miniaturists. Together with Diaghilev, Léon Bakst showed himself to be the most talented of the theatre group designers of his time. The costumes he devised with exclusive art seemed to shimmer with a thousand colours. Dazzled by such powers of imagination, the author, Jean Cocteau, dedicated his book "Bonjour Monsieur Bakst" to him. The great contemporary composers Tchaïkovsky, Rimsky-Korsakov and Stravinsky, among others, all had occasion to call upon his creative genius. Today, his designs remain very popular and may still be seen on stage scenes all over the world, admired by a public that remains as enthusiastic as ever.