Coordinate Transformation, vectors, tensors etc.

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This is a resource recommendation question. I have started to read classical field theory, although I find it easy, some mathematics in it, I haven't encountered before. These are coordinate transformations, how vector fields change under such a transformation, jacobian of transformation and its purpose, etc. The problem is that I do not know under what broad subject these come under and hence I am not able to find books that encompass it all. I tried reading a book on differential geometry but it took certain topics that I am not aware of for granted. please help.