Charlie Eckert Books

The inflatable crown

By Addi Somekh, Charles Melcher, Charlie Eckert

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Provides step-by-step instructions for creating balloon hats, balloon rings and balloon bodysuits. Includes hundreds of vivid photos of people modeling their balloon hats worldwide.

Mary Holmes

By Addi Somekh, Charlie Eckert

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Inflatable Planet

By Reggie Watts, Charlie Eckert, Addi Somekh

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A balloon artist and photographer travel the world surprising people with improvised, inflatable crowns and offer a deep view into the nature of joy. The simple act of twisting a balloon for a com...

The Varieties of the Balloon Hat Experience 2002 Calendar

By Addi Somekh, Charlie Eckert

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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.