Availability of Texts 

Unfortunately, physical copies of William Morris's works can be hard to find. I will try to list the best places to buy his works below. Dover currently has available on their website new paperback copies of The Wood Beyond the World, The Story of the Glittering Plain, The Sundering Flood, and News from Nowhere. There is also a Penguin edition of News from Nowhere and other writings here. Past that, ebay and abebooks can be good places to find used volumes by Morris.

Most of Morris's work can be found electronically at Project Gutengerg. If you are interested in buying physical books, most of Morris's work can be found in The Collected Works of William Morris. Hardback versions of his collected works haven't been printed for some time and are very expensive to buy used. Paperback versions are available through the Cambridge University Press as the 24 volume set or individually. 

This set of collected works makes several notable omissions: