Guohui Chen Books

Shang ye tou zi lun
Shang ye tou zi lun

By Guohui Chen

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Ji chu kuai ji
Ji chu kuai ji

By Guohui Chen, Xusheng Chi

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Ji chu kuai ji
Ji chu kuai ji

By Guohui Chen, Xusheng Chi

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Zi qu
Zi qu

By Guohui Chen

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Shi nian cheng shi
Shi nian cheng shi

By Guohui Chen, Qiongai Zhu

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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.

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