D. Gary Benfield Books

Nonprescription Drugs in Pregnancy

By D. Gary Benfield M.D.

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Walking the Baby Beat

By D. Gary Benfield

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Prescription drugs in pregnancy

By D. Gary Benfield

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Prescription Drugs in Pregnancy

By Cynthia Kelley, Gary Benfield

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Throwing stones

By D. Gary Benfield

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When Cindy McDoogle shouts, "On your mark, get set, Go!" to start the Annual Frog and Toad Sailboat Race, no one knows danger lurks nearby. Will cousin Michael and his sidekicks ruin the day?--Back...

Throwing stones

By D. Gary Benfield

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Nonprescription Drugs in Pregnancy

By D. Gary Benfield

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Making New Friends

By Dr. Gary Benfield

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Frog and Toad Sleepover

By Chris Sharp, Gary Benfield

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I Can t Wait to Meet You

By D. Gary Benfield, Chris Sharp

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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.