How do I get the textbooks onto my new laptop

I purchased 2 textbooks about a month ago to put onto my MacBook Pro laptop. Unfortunately, my MacBook got water damaged a couple days ago and I had to purchase a new laptop ( a Dell laptop with Windows). I am so behind in school work because I can't figure out how to get the textbooks onto my new laptop. How do I get the textbooks onto my new laptop?

I already put the adobe digital editions onto my new laptop and authorized the laptop.

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