The book is designed to open flat while being used, and the texts point out important details to be observed._x000D_ The heads of waterfowl drafted in intricate detail. Exact specifications regarding head thickness, eye color and size, and the fine points of the bill from top, bottom, and profile views. Four patterns are included for each bird: full-sized, 1/2, 2/3 and 1/4 of the actual size._x000D__x000D_ _x000D__x000D_ AUTHOR: