The ancient art of marbling, first practiced in 15th-century Persia, is alive and well with contemporary crafters and designers. It is the fluid and ethereal "cloud art" that was once seen only inside the covers of old books. The swirling, feathery patterns and dramatic speckles of color convey an almost exotic feel, yet these complex, elegant designs are remarkably easy to achieve using simple materials and tools, even for first-time marblers...