I found Mr. Lang to be a professional no-nonsense professor. He is the kind of teacher you would hope to find in a college class. I came to this country from Europe and I came to improve myself. I found that Mr. Lang was very helpful and organized, and seemed to go out of his way to provide clear examples for the students to follow. Sadly I notice many of my fellow students expect to be able to not study, or not prepare and have that be forgiven. It seems they were able to get away with this in High School. I find CCSF is a good College and good way to prepare for advanced education, I take this very seriously and hope to be able to go on to be a lawyer some day.