Charley Harper delighted legions of art and animal lovers the world over with his posters for the National Park Service, includingIsle Royale National Park, Michigan. The park, established in 1940, spans a large wilderness island and more than 450 smaller islands in Lake Superior. Its home to wolves, moose, and a wide variety of birds, a few of which Harper has perched amid the birches in this poster. The artworks for his park postersmassive, requiring a year each to paintshowcase Harpers skill in depicting entire ecosystems by using simple shapes and patterns, and vivid colours. Reproduced for this 1,000-piece puzzle, this one exhibits an almost abstract approach.