Patent ID: 7338084
Filing Date: 2008-03-04
Classification: A63H,B42D,B42F

Abstract:
1. A book comprising: a plurality of sheets each having oppositely facing front and rear surfaces, the plurality of sheets comprising a plurality of sheet sets, the book having a peripheral edge, the peripheral edge having a first engagement location and a second engagement location that is different than the first engagement location; and a binding that maintains the plurality of sheets together in a stacked arrangement with a top sheet and a bottom sheet, the plurality of sheets comprising: a) a first sheet set within which each sheet has a front surface having one type of related material thereon; b) a second sheet set within which each sheet has a front surface having another type of related material thereon that is different than the one type of related material; c) at least one sheet in the second sheet set between sheets in the first sheet set; and d) at least one sheet in the first sheet set between sheets in the second sheet set, the front surfaces of the sheets in the first sheet set overlying at least one sheet in the second sheet set each having a first engagement portion comprising a forwardly facing surface at the first engagement location, the sheets in the second sheet set underlying at least one sheet in the first sheet set each having a cutout at the first engagement location underlying one of the forwardly facing surfaces so that the forwardly facing surface on each sheet in the first sheet set overlying a sheet in the second sheet set blocks a cutout in an underlying sheet in the second sheet set at the first engagement location as viewed from the front of the book, so that the first engagement portions are serially engaged by a user's thumb at the first engagement location and exposed by continuously gripping the book at the first engagement location with a rear surface on a user's thumb at the first engagement location and flipping the plurality of sheets from front to back so that the rear surface of the user's thumb passes through the cutouts without engaging the front surfaces of the sheets in the second sheet set underlying at least one sheet in the first sheet set, thereby serially engaging the forwardly facing surfaces and thereby serially exposing the front surfaces of the sheets in the first sheet set without engaging the sheets in the second sheet set underlying at least one sheet in the first sheet set and thereby exposing the front surfaces of the sheets in the second sheet set underlying at least one sheet in the first sheet set, the front surfaces of the sheets in the second sheet set overlying at least one sheet in the first sheet set each having a second engagement portion comprising a forwardly facing surface at the second engagement location, the sheets in the first sheet set underlying at least one sheet in the second sheet set each having a cutout at the second engagement location underlying one of the forwardly facing surfaces so that the forwardly facing surface on each sheet in the second sheet set overlying a sheet in the first sheet set blocks a cutout in an underlying sheet in the first sheet set at the second engagement location as viewed from the front of the book, so that the second engagement portions are serially engaged by a user's thumb at the second engagement location and exposed by continuously gripping the book at the second engagement location with a rear surface on a user's thumb at the second engagement location and flipping the plurality of sheets from front to back so that the rear surface on a user's thumb passes through the cutouts in the sheets in the first sheet set without engaging the front surfaces of sheets in the first sheet set underlying at least one sheet in the second sheet set, thereby serially engaging the forwardly facing surfaces and thereby exposing the front surfaces of the sheets in the second sheet set without engaging the sheets in the first sheet set underlying at least one sheet in the second sheet set and thereby exposing the front surfaces of the sheets in the first sheet set underlying at least one sheet in the second sheet set, the plurality of sheets further comprising a sheet that directly overlies one of the sheets in the first sheet set and has a back surface with the one type of related material thereon that is fully exposed to view simultaneously with the one type of related material on the front surface of the one of the sheets in the first sheet set as the user flips from front to back with the first engagement location continuously grasped by the user.