Nancy Poydar Books

The biggest test in the universe

By Nancy Poydar

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Sam and his classmates dread Friday, the day they are to take the infamous Big Test.

The bad news report card

By Nancy Poydar

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Fearing that her report card will not contain good news, Isabel tries to devise a way to hide it from her parents.

First day, hooray!

By Nancy Poydar

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All over town, Ivy Green and her bus driver and her teacher and the other school employees get ready for the first day of school.

As the judging of his class's science fair approaches, Otis has trouble even thinking of an idea but once he has built a bird feeder he is determined to make some good observations, no matter how l...

Mailbox magic

By Nancy Poydar

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A young boy who wants to receive mail of his own sends away for an offer he sees on the back of a cereal box.

First Day Hooray

By Nancy Poydar

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Rachel Parker Kindergarten Show Off

By Ann Martin, Nancy Poydar

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Rhyme time valentine

By Nancy Poydar

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Ruby's homemade valentines blow away while she is walking to school, but she figures out a way to give everyone a valentine anyway.

Bunny business

By Nancy Poydar

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When his class performs a spring play about rabbits, Harry proves that he is a good listener after all.

Last day, hooray!

By Nancy Poydar

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On the last day of school, Ivy, her classmates, and teachers dream of summer as they clean and prepare for the last party of the school year.

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.