The Blue Issue contains 15 stories that start from the colour blue. From Henri Matisse’s cut-outs to the special shade of ultramarine that Yves Klein patented, The Colour Journal excavates familiar moments in cultural history in order to discover what lies beneath. Follow a denim hunter through Idaho, visit one of the last Chinese cultural minorities in Guangxi, take a look at Helmut Newton’s private collection of Polaroids, and dive into David Hockney’s chlorinated pools.