Very interested in this. I'm currently learning a second language and my programmer brain keeps getting side tracked by _human language as an abstraction_ in an

Very interested in this. I'm currently learning a second language and my programmer brain keeps getting side tracked by _human language as an abstraction_ in and of itself. I'd be very interested in a basic intro to linguistics book that starts from first principles and goes through what grammar fundamentally is, syntax, morphology, etc.