O'Reilly Media (978-1 group)
ISBN Publisher Prefix 978-1-491 — Group 978-1 (English language (additional))
United States
About This Publisher Prefix
O'Reilly publishes technology books and online learning content.
The publication number segment following the publisher prefix is 5 digits long, giving this publisher a theoretical capacity of up to 100,000 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 O'Reilly Media (978-1 group)
Example ISBNs for This Prefix
These are illustrative examples showing what ISBNs from O'Reilly Media (978-1 group) look like. The actual books published under each number will vary.
| ISBN-13 | ISBN-10 |
|---|---|
| 978-1-4910-0000-7 | 1-4910-0000-7 |
| 978-1-4910-0001-4 | 1-4910-0001-5 |
| 978-1-4910-9999-5 | 1-4910-9999-2 |
Paste any real ISBN from O'Reilly Media (978-1 group) into the decoder tool to validate and decode it.