This is Haruo Fukuda & Others "The Life Histories of Butterflies in Japan" (4 Volumes). These books are written in Japanese. This is the definitive series on the butterflies of Japan. Don't miss out. This is the beginning of breaking down a collection from a well know naturalist, bird watcher and butterfly expert. This teacher and nature tour guide has amassed a world class collection of nature/bird/animal/butterfly books that he now wants to share with you. People who run in these circles will recognize these books as "very collectible" and being offered at very reasonable prices. All questions gladly answered ahead of time to avoid confusion later. Thanks for looking and watch for many more great bird and nature books to come from this collection. bc