David Biedrzycki Books

Mi Dragon y Yo

By David Biedrzycki

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Bear Alert

By David Biedrzycki

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Ace Lacewing Bug Detective in Bad bugs are my business

By David Biedrzycki

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After being mugged, Scratch Murphy the flea asks Ace Lacewing, Bug Detective, for help in finding the culprit who stole money from his Six Legs Amusement Park.

Santa s new jet

By David Biedrzycki

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Shortly before Christmas, Santa discovers that the sleigh needs major repairs and the reindeer are out of shape, and so the elves build him a jet to use on his annual trip.

Santa retires

By David Biedrzycki

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Santa Claus is tired of delivering toys and decides to retire to somewhere warm, but things do not work out as expected.

Me and my dragon

By David Biedrzycki

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A boy tries to find the perfect Halloween costume for his pet dragon, so they can go trick-or-treating together.

Santa's new jet

By David Biedrzycki

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Shortly before Christmas, Santa discovers that the sleigh needs major repairs and the reindeer are out of shape, and so the elves build him a jet to use on his annual trip.

SumoKitty

By David Biedrzycki

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Groundhog s Runaway Shadow

By David Biedrzycki

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SumoKitty

By David Biedrzycki

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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.