Nancy J. Hopper Books

The Queen Of Put-Down

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When She Tries To Befriend Sabrina, The New Girl In Class, Fifth-grader Cassie Finds Unexpected Obstacles In Her Path, Not The Least Of Which Is Sabrina's Prickly Personality.

I Was A Fifth-Grade Zebra

By Nancy J. Hopper, Hopper, Nancy J.

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136 pages ; 20 cm When other girls in her fifth grade class seem to be obsessed with boys, Chelsea Zeller tries to imitate her role model, Dian Fossey, as she examines her identity and her own feel...

What Happened In Mr. Fisher'S Room

By Nancy J. Hopper, Nancy J. Hooper

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Lanie's science class is out of control! Mr. Fisher is the worst teacher in Morgan Middle School. His class is like a zoo, with kids making animal noises and running wild. When he unfairly accuses...

Truth Or Dare Trap

By Nancy J. Hopper

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As the summer progresses, Meg's feelings for the popular leader of her crowd of girls change as the group's activities become less fun and more dangerous.

Ape Ears And Beaky

By Nancy J. Hopper

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Thirteen-year-old Scott struggles to learn to control his temper, but not before it's led to all sorts of trouble, including dismissal from one baseball team, humiliation on another, and involvemen...

Rivals

By Nancy J. Hopper

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Hang On Harvey

By Nancy J. Hopper, Nancy J. Hooper

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The Seven 1/2 Sins Of Stacey Kendall

By Nancy J. Hopper, Nancy J. Hooper

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Concerned with becoming beautiful, eleven-year-old Stacy devises a moneymaking scheme in order to purchase a Bust-ter-sizer, and learns in the process that beauty is indeed only skin-deep

The Queen Of Put-Down

By Nancy J. Hopper

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Ape Ears And Beaky

By Nancy J. Hopper

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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.