Most, if not all, of Zeman's work was released in a mind-boggling box set in Japan. I bought a knock-off set of these discs from an eBay seller that turned out to be of excellent quality. I still haven't watched everything -- it's all in Czech, with Japanese subtitles! -- but of what I've seen, I was most impressed by Zeman's SINBAD shorts. These tell the various stories of Sinbad (including some great ones that Harryhausen never got around to doing) entirely in animated paper figures and sets. (The eBay seller included some English language versions of things, too, which helped my comprehension of this material.)

Incidentally, Zeman's daughter, who lives in Canada, has been publishing a series of children's books that she writes and illustrates (beautifully), based on these works of her father.