The four elements - Water , by m c escher , 1952 , design , Op Art style , fish, designs and sketches, postcards, Postage stamp, Pattern
A poster with a bunch of fish on it.
 a cover of a book. The title of the book is "Felicitas 1956" at the top. Below the title is "Eugene & Willy Strens" in smaller black letters. The background of the cover is light yellow. There is a design of fish on the cover. The fish are dark blue and light green. The design of the fish are outlined in black.