The gargantuan, bewildering Louvre

Art Nouveau masters such as Louis Comfort Tiffany and Émile Gallé turned the most fragile of materials into iridescent masterpieces that shimmered like seashells or glittered like Byzantine mosaics, as Matthew Dennison discovers

Still Life Flowers in a Jug at Charleston, ...

The Dream by Henri Rousseau

A sale of Modern British Art earlier this year brimmed with the kind of wonderful works that auctioneers find a little heart-wrenching to let go, including a Waterfall full of wild windiness by Sir Kyffin Williams

Alexander Marshal–this country’s first major botanical painter–deserves to be better known, writes Tiffany Daneff, after seeing his luminous originals in the Royal Collection