How To Understand an ISBN Code

Have you ever seen the number on the back of a book (usually above the barcode), and wondered what it meant? That's the ISBN (International Standard Book Number). An ISBN is a number assigned for the identification of books and book-like products that are distributed internationally. Each set of numbers represents information about the book. Here's how to interpret those numbers

The ISBN code is normally in the back.

Thirteen Digit ISBN Numbers

The ISBN code was created in 1970 with 10 digits but, since January 1, 2007, ISBNs have contained 13 digits.
It has five parts of variable length each separated by a hyphen.
The last section is a single digit and is used to check the validity of the ISBN.
The last digit may be an x which is the Roman numeral for 10.
The first digit (the 0-) is the language. In this case, it's English.
The second part (590) represents the publisher. You, (use your number preceded by a 6 for grade 6 ex. 601)
The third part represents the title of the book (37454).
Whenever it is printed it is preceded by the letters ISBN.
The ISBN, once assigned, may never be reused.
An ISBN is printed on the lower portion of the back cover and on the copyright page.

Edit Our Code:     ISBN 0-203-629-12345-3

• We will use this format:
• section 1: 0 for English
• section 2: 203 for our classroom number
• section 3: 6## for the author (## is your in class number)
• section 4: a 5 digit number you assign your title
• section 5: is a single digit which validates the ISBN. It is a digit, when all the numbers are added together,  which makes the number a multiple of 10. (2+0+3+6+2+9+1+2+3+4+5=37, 37+3=40)

Write the ISBN for your book here: