Just back from a freezing morning at the Ardingly International Antique fair - not much glass for me, but did manage to pick up "Czech glass 1945 - 1980. Design in an age of adversity" for £25.
Having skimmed it, it looks good - there are 2 CD's included:
The first is the entire book in German.
The second is a searchable database of 20th Century Czech Glass Design Drawings at the Corning museum of glass.
It appears that the design drawings are also available on the Corning website, as are a number of the pictures of the glass in the book, so if you're thinking of buying the book (or just like Czech glass), this is worth a look.
http://www.cmog.org/index.asp?pageId=1176taylog1