David Sacks Books

Extreme Balance

By David Sacks, Joe De Sena, Ben Askren

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Encyclopedia of the ancient Greek world

By David Sacks

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A fun, lively, and learned excursion into the alphabet—and cultural history.Letters are tangible language. Joining together in endless combinations to actually show speech, letters convey our messa...

Language Visible

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Letters are tangible language. Joining together in endless combinations to actually show speech, letters convey our messages and tell our stories. While we encounter these tiny shapes hundreds of t...

Critterlandia

By David Sacks, Robin Strand

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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.