Twentieth-century glass is going from strength to strength, its key appeal being the current availability and affordability of the pieces. The difficulty with this booming collecting area is that the glass rarely bears marks that identify its maker. For the first time ever, this guide identifies over 2,000 pieces of readily available glass, shedding light on a previously un-identified mass of highly collectable glass. A comprehensive introduction gives tips on identification, collecting, buying, and a review of the history of 20th-century glass and country-by-country developments and innovations. Key factories are then explored, presented in alphabetical order, each with a key facts box. Within each factory, the work of their main designers is presented in stunning visual timelines that provide a unique at-a-glance view of their development. Those who want to take a further step and trace the work of specific factories and designers as they progressed over the decades will find this feature invaluable.The book highlights important factories such as Holmegaard (Denmark) and Iittala (Finland), and celebrated designers including Per Lutken, Timo Sarpaneva, Nanny Still, and Alexander Hardie Williamson, alongside less well-known but increasingly collectable makers. Photographs include marks and original design drawings and advertising, and value codes are provided for each item.