Hello PF'ers, Does anyone have insight on the best way to learn Signal Processing? I am new to the subject and feel totally lost in my course. Our professor has a teaching style that doesn't work for me. He isn't teaching from a textbook and the notes don't fully explain things. Successful completion of assignments has given me a greater mastery of Matlab, but little insight into theory. Also, on his first test he asked questions I felt were outside the perspective offered in class- I need to learn from somewhere why these questions matter. I should probably state that I learn much better from a textbook than a lecture- if anyone can recommend a good text source that would be great. I have more of a bio background than an EE background if that helps. Thanks in advance.