Paul Langan Books

Brothers in Arms Bluford High

By Langan Paul Alirez Ben

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Brothers in Arms Bluford Series Number 9

By Paul Langan, Ben Alirez

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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...

Making the most of your life

By Paul Langan

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Schooled

By Paul Langan

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There's no backing down for Lionel Shepard. With a dream of joining the NBA, all he wants to do at Bluford High is play Basketball. But everyone's trying to stop him. Bad grades, bad advice from...

Bullying in Schools

By Paul Langan

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Survivor

By Paul Langan

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Tarah Carson has hidden the secret for years. No one--not her mother, her friends at Bluford High, or even her boyfriend, Cooper Hodden--knows what her uncle did to her years ago. Tarah hoped to ke...

Bluford Series 20 Book Boxed Set

By Anne Schraff, D.M. Blackwell, Peggy Kern, Paul Langan, Ben Alirez, Karyn Folan, John Langan

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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.