Supply Chain of a bookstore

I am trying to write a short essay approximately 350-400 words describing the supply chain of a bookstore. I need to include from the very start, before paper is made. What is the process from tree, to paper, to author idea, publisher, printing, etc.... I just need a brief description, for a better understanding. Please if possible, can you explain instead of bullet format. I am willing to increase the bid if necessary. Again, this just needs to be a brief description. Any help is very much appreciated.

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