i am absolutely convinced that this is the best linear algebra textbook. i've been reading bits of it on and off the past couple of years (before, during, and after a course at uni) and STILL i find something new and worthwhile in it. and the best thing about it is that the exposition is crystal-clear, i don't think i've ever once been lost in any passage of the book, everything is perfectly explained and motivated
this is the creme de la creme of mathematical exposition