About This Publisher Prefix
Penguin Books is one of the most recognized names in publishing, founded in 1935 by Allen Lane.
The publication number segment following the publisher prefix is 6 digits long, giving this publisher a theoretical capacity of up to 1,000,000 unique ISBNs within this prefix.
The ISBN system works by dividing the 9-digit body of an ISBN (after the EAN prefix) into three parts: registration group, registrant (publisher), and publication number. Shorter publisher prefixes indicate larger publishers who need more publication numbers; longer prefixes are assigned to smaller presses with fewer titles.
ISBN Structure for Penguin Books
Example ISBNs for This Prefix
These are illustrative examples showing what ISBNs from Penguin Books look like. The actual books published under each number will vary.
| ISBN-13 | ISBN-10 |
|---|---|
| 978-0-1400-0000-9 | 0-1400-0000-3 |
| 978-0-1400-0001-6 | 0-1400-0001-1 |
| 978-0-1400-9999-7 | 0-1400-9999-9 |
Paste any real ISBN from Penguin Books into the decoder tool to validate and decode it.