And Antonia? Take a cube primitive, and stretch it out to form a 'spine' shape of a book. Now take a square primitive, position it, and set a constrained group of the one line of polygons touching the cube. Repeat until desired thickness is obtained (remembering to include page offsets to avoid collision violations). Rotate so the 'pages' are hanging down, run recalculate dynamics, and go away for awhile. When done save what you have, then rename the file and keyframe a motion path for the cube to land against an imported wall prop (with collisions turned on for the wall). Test the flight path in box mode, and if adequate, recalc the dynamics again and set to render as you prefer. Enjoy! :P