Paul Langan Books

The Bully

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Darrell Mercer, a 9th grader at Bluford, is at the center of this story. Darrell and his mother move to the Bluford area in the middle of the school year. Physically smaller than his peers, Darre...

This sequel to Brothers in Arms picks up the story of Martin Luna as he struggles to rebuild his life after the death of his little brother. In trouble at Bluford High School for fighting, Martin f...

Summer of Secrets

By Paul Langan

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Darcy Wills needs help. A frightening ordeal at the end of the school year has turned her world upside down. And her parents, distracted by problems at home, don't seem to notice her troubles. With...

Blood Is Thicker

By Paul Langan

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Secrets in the Shadows

By Anne E. Schraff

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Summer of Secrets Bluford High

By Paul Langan

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The Bully

By Paul Langan

Average: 0.00, 0 Ratings

Darrell Mercer, a 9th grader at Bluford, is at the center of this story. Darrell and his mother move to the Bluford area in the middle of the school year. Physically smaller than his peers, Darre...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.