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Congrats!! I’ve been trying to study the basics of type theory but without a more formal background in some of the mathematics/proofs i’m in a little over my head with those books. The red dragon book seems to have simpler / less mathematical explanations of basic type stuff so far

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I would recommend "Software Foundations" also by Pierce. It covers a lot of the same material but in Coq. I found it much more approachable not having as much of formal background. Having proofs machine checked with error messages is a god send for your sanity when you don't have a professor there to validate you.

I have no formal education in type theory (or computer science), but I found the textbook I mentioned to be perfect for self-learning. There are some bits that are over my head (especially the proofs), but I've found it to be exceptionally accessible otherwise.

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