practice. A book or paper containing an abstract of all the facts and pleadings necessary, to the full understanding of a case. 2. Courts of error and other courts, on arguments, require that the judges shall each be furnished with such a paper-book in the court of king’s bench, in England, the transcript containing the whole of the proceedings, filed or delivered between the parties, when the issue joined, in an issue in fact, is called the paper-book.