Stock photography, photos: book binding closeup Stock photos of close up of comb binding book Photograph: © Choon Boon Ng Click for a larger image and more information Keywords associated with this stock photo: comb,binding,bind,binded,bound,book,spine,papers,report,close up,closeup,homework,home work,assignment,answer,question,solution,tutorial,learn,learning,notes,textbook,text,facts,school,college,university,classroom,science,study,studies,studying,studious,scholar,subject,teaching,education,schoolwork,intellectual,knowledge,concept,conceptual