Fred Ehrlich Books

You Can t See a Dodo at the Zoo You Can t...

By Fred Ehrlich

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You Can t Take Your Body to a Repair Shop You Can t...

By Fred Ehrlich

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You Can t Lay an Egg If You re an Elephant

By Fred Ehrlich

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You Can t See a Dodo at the Zoo

By Fred Ehrlich

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You can t take your body to a car mechanic

By Fred Ehrlich

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"This entry in the You Can't ... series explores the science, physiology, symptoms, treatments, and main causes of common ailments. Colds, bellyaches, diarrhea, earaches, flu, skin conditions, alle...

You Can t Build a House If You re a Hippo

By Fred Ehrlich

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Does a lion brush?

By Fred Ehrlich

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Although animals may not brush their teeth, children are told how and why they should.

Does a hippo say ahh?

By Fred Ehrlich

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Explains, in simple text, why it is important to have a medical check-up every six months and describes the instruments used by the physician during an examination.

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.