Changjian Guo Books

Zhongguo de shi jie yi chan

By Changjian Guo, Jianzhi Song, Lingyu Feng

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New A4 China Germany in German of the PRC State Council Information Office 97 Chinese Edition

By ZHONG HUA REN MIN GONG HE GUO GUO WU YUAN XIN WEN BAN GONG SHI

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Zhongguo lu you

By Changjian Guo

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Zhong wen ban Illustrator CS5 ping mian she ji gao ji an li jiao cheng

By Xin Peng, Changjian Guo, Junwei Qi

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Ben shu cai yong xiang mu jiao xue fang shi, tong guo da liang an li xun xu jian jin di jie shao liao Illustrator CS5 de ge xiang gong neng, nei rong han gai Illustrator CS5 ru men, lu jing hui zhi...

Zhong guo de li

By Yading Wang, Changjian Guo, Ping Zheng

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Zhong guo hui hua

By Changjian Guo

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Ping yao gu cheng

By Changjian Guo, Weichen Shen, Cunliang Shen, Jianwu Wang

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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.