Wei Yan Books

Tou shi mian ju lian pu
Tou shi mian ju lian pu

By Wei Yan

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Ji suan ji wang luo
Ji suan ji wang luo

By Sileier Wei, Wei Yan, Aimin Pan, Nenbaomu Ta

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Ben shu an zhao wang luo xie yi mo xing zi xia er shang(wu li ceng,Shu ju lian lu ceng,Jie zhi fang wen kong zhi ceng,Wang luo ceng,Chuan shu ceng he ying yong ceng)You xi tong di jie shao le ji su...

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Wan zhuan ren sheng de mi jue
Wan zhuan ren sheng de mi jue

By Wei Yan

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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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