“国际标准书号”又称“国际书号”或简称“书号”,由在德国的国际书号总部制定及编配。国际书号开首的4个英文字母ISBN,即InternationalStandard Book Number的缩写形式。后面10个数字,分为长短不一的4组数字,最短的1位数,最长的7位数,中间以短线或一点相隔,或以空格隔开,不能相连,因为4组数字分别有不同含义:第一组数字是 ISBN, also called “ISBN” or “Book Number”, is drawn up and assigned by ISBN Headquarters in Germany. The ISBN, the first of four ISBNs, is an abbreviation for International Standard Book Number. Behind the 10 figures, divided into four groups of different lengths, the shortest 1 digits, the longest 7 digits, the middle of a short line or a little separated, or separated by a blank space, can not be connected, because the four groups of numbers, respectively Different meanings: The first set of numbers is