I love folk art and illustration and have recently become interested in vintage Polish art. I saw images from this book online awhile ago and it suddenly came up for sale on Ebay so I snatched it up. The book was published in 1965 in Warsaw and I believe it is a play (the text is all in Polish...) It was illustrated by Ukrainian-born artist Adam Kilian. For some history about Adam Kilian, check out this website culture.pl. You can see more of Kilian's illustration on another website, Fishink (and Fishink has lots of other great stuff on it too!).
Here are most of the illustrations from the book although not necessarily in order.