SICP by a mile, for one reason: the SICP videos: http://groups.csail.mit.edu/mac/classes/6.001/abelson-sussman-lectures/ http://groups.csail.mit.edu/mac/classes

SICP by a mile, for one reason: the SICP videos: http://groups.csail.mit.edu/mac/classes/6.001/abelson-sussman-lectures/ http://groups.csail.mit.edu/mac/classes/6.001/abelson-sussma... That's the best 20-hour introduction you could ask for.