This is a Japanese-language book or magazine about figures and/or figure modeling.
It's hard to classify this collection -- it encompasses series as diverse as Kinnikuman, Tiger Mask, Ashita no Joe, and Galaxy Express 999. The package includes the book, which covers the 2004-2006 "Ultimate Muscle" series guide to the figures, with photographs, illustrations, and interviews with the creators; and of course there's a figure of the Kinniku Buster (Teriman version). The book is 144 pages, soft cover; all text is in Japanese.