Category theory by Tom LaGatta[1] is also a nice introduction. He suggests taking a look at the nLab website[2], a wiki of Maths and Physics from the categorica

Category theory by Tom LaGatta[1] is also a nice introduction. He suggests taking a look at the nLab website[2], a wiki of Maths and Physics from the categorical point of view. [1] https://www.youtube.com/watch?v=o6L6XeNdd_k https://www.youtube.com/watch?v=o6L6XeNdd_k [2] http://ncatlab.org/ http://ncatlab.org/