Cloos is a pretty hilarious dude who's enthusiastic about philosophy. I had him for PHIL3 Intro to Crit Thinking and the material wasn't difficult at all as long as you get the HW done and spent a couple hours reviewing the material and doing practice problems. Content is closer to simple math and little memorization than abstract philosophy.

Cloos might just be the best professor I have ever had at UCSB. He is caring, quirky, organized, and very knowledgable about what he is teaching. He will answer every question you throw at him, and give tips for upcoming exams. The course requires a $100 online textbook, but it has so many features it is helpful. TAKE THIS CLASS WITH CLOOS!

Great guy, very invested in what he teaches. A lot of dense reading but he explains it well in class. Rather funny from time to time. IMO a harsh grader on the papers. Long study guide for the final (and long final) but the final was just questions pulled off the study guide more or less. Difficult class but worth it.

Did not expect the class to be so hard and the lectures were almost entirely based on the textbook (in easier terms though). Grade based on iClicker, a paper, a midterm and a final. You need to know A LOT of material for the exams but he gives you all the possible prompts beforehand. Not an easy A class- you really have to work for your grade.

Really passionate lecturer! Study guides lay out the exact exam questions, and the paper was very straightforward. Yeah, it's a lot of material but everything is super interesting and Cloos cares about his students. He is also really funny in lectures.

This was the most ridiculous INTRO class I have ever taken here at UCSB. I was genuinely looking forward to taking it because it sounded interesting and because I needed to take it for my major, but it was UNBELIEVABLY difficult. Organic chemistry was easier than this. Highly don't recommend taking this class if you have an alternative.