Sensu stricto a cancel is a corrected version of any part of the book made after the book is printed. Thus if the entire book were thrown away and reprinted with corrections this would be a cancel, though nobody except the publisher and printer would really be aware of this. Usually however cancels are less extensive than that. They can be made to a single word or character, with the revised version pasted in (see Handwork); an entire page tipped in to the book after the wrong one was removed (usually called Rip and tip); or, if detected before binding, an entire signature, or a four page, double leaf insert.