Can I trust a seller selling textbooks on Amazon.com, what type of scams/issue should I be aware of?

I am looking to purchase my textbooks from private sellers through amazon.com that are selling used textbooks, is it safe?

What are some risks/things I should watch for?

Heavier penalties soon for unlicensed direct selling and scams

Heavier penalties soon for unlicensed direct selling and scams
BERA: The Direct Sales Act will be amended to impose heavier penalties on those involved in unlicensed direct selling and scams.

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