Greg Pincus Books

The 14 fibs of Gregory K.

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Gregory Korenstein-Jasperton is an eleven-year-old boy who likes to write stories and poems and is not excited by math, but he has a problem--he is the middle child in a family of math geniuses and...

The Homework Strike

By Greg Pincus

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The homework strike

By Gregory K. Pincus

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Now in seventh grade Gregory K. is frustrated by all the homework that leaves him no time for writing, which is what he loves to do--so he decides to go on a homework strike, and with his history t...

14 Fibs of Gregory K.

By Gregory K. Pincus

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Homework Strike

By Greg Pincus

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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.