Shaped board book, with electronic sound attached to inside back cover. Board book, with electronic sound module attached to inside back cover Shaped board book, with clock face with plastic hands attached to inside back cover Board book, with foil mirror attached to inside back cover Board book with squeaky nose attached to inside back cover Board book with electronic sounds from panel attached to extended back cover. Board book with electronic sounds from panel attached to extended back cover Lift-the-flap board book, with foil mirror attached to inside back cover Board book, with electronic sounds from sound module attached to extended inside back cover. Card pieces in pocket with velcro fastening attached to inside back cover.