Dear MARMAM colleagues, We are pleased to announce that the following book is now published: Uekusa Y, Ichishima H, Ito H, Ueda K (2019) "Osteology of Whales" 151pp. Midori-Shobo.ISBN：978-4-89531-365-0 In Japanese. https://www.amazon.co.jp/%E9%AF%A8%E9%A1%9E%E3%81%AE%E9%AA%A8%E5%AD%A6-%E6%A... This is the first book in Japan that explains the features of the skeleton of cetaceans in detail along with rich visuals. <Key points of this book> * Details of the features of the whale's skeleton, centered on the head bones with large variations compared to other mammals. In each bone's name, minimum English and Latin words were written. *It is visually understandable with large, easy-to-see figures, illustrations, and photographs taken at various angles. *The evolution and history of cetaceans are also explained in an easy-to-understand manner. *It also includes information useful for observing bones, such as bone preparation methods, basic bone measurement protocols, and CT findings. Yasuhiro UEKUSA MD,DDS,Ph.D(Med),Ph.D.(Dent). Otolaringology, Head and Neck Surgery, Sensyu-Futaba Co. e-mail;kenta155@mail.goo.ne.jp