Organizer notebook for holding index cards

An organizer notebook for retaining a multiplicity of index cards of the type having a pair of retention perforations formed along a bottom edge thereof, the organizer notebook comprising:

• left and right panel members, each of said left and right panel members being generally flat and being equal in width and height;
• a spine member having a height equal to the height of each of said left and right panel members and having a width substantially less than the width of each of said left and right panel members, said spine member being positioned between said left and right panel members so as to hingedly connect said left and right panel members;
• zipper means coupled to said left and right panel members along a peripheral edge thereof away from said spine member to thereby enable a user to zip said organizer notebook into a folded closed position and to unzip said organizer notebook into a flat open position;
• and
• a cardholder member attached to an inside surface of a selected one of said left and right panel members, said cardholder member comprising an elongated flat base plate and a correspondingly elongated card retainer having an area less than an area of said base plate, said card retainer being formed on a top surface of said base plate, said card retainer including a pair of parallel flanged side rails over which a multiplicity of said index cards may be removably positioned, said flanged side rails being formed to mate with said retention perforations in said index cards.