The highly respected and referenced Monogram Close-Up series concentrates on German and Japanese aircraft of World War II.  Each title includes a well-researched development and operational history along with a technical description.  All variants are thoroughly reviewed and are well illustrated along with a general view, close-up black and white photographs and line drawings.  Later volumes also have a center spread of color photos.  The book Monogram Close-Up 6: Messerschmitt Bf 109 G "Gustav", Part 1 is 32 pages and is in very good condition with a crease on the top of the front and back covers.  The author is Thomas H. Hitchcock.  Edition published in 1976.