Tutorials for python libraries- Please recommend

Last semester, I took the "python remedial seminar". Although I can code in python, I have zero experience with pillow, numpy, opencv, and matplotlib. Can people suggest useful tutorials that will help me learn these libraries so that I may succeed in OMSCS? Please gear these suggestions to someone who wants to specialize in AI/ML. (Many of the pillow tutorials I saw on YouTube have to do with manipulating pictures of pet dogs and cats, which may or may not be useful here in OMSCS)

Thank you