Strang's OCW lectures are fantastic. His voice rings "combinations of columns" in my head almost ten years later whenever I do a matrix or matrix-vector multipl

Strang's OCW lectures are fantastic. His voice rings "combinations of columns" in my head almost ten years later whenever I do a matrix or matrix-vector multiply on paper. I found the textbook was a good accompaniment for the lecture course, but maybe not a good book to use on its own for self-study. (IIRC, when following the lectures, you jump around the chapters a bit out of order [or, you read the chapters non-linearly]. So the disorganized thing may be true.)